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BSc Nursing - Applied Anatomy & Physiology

Comprehensive Exam Preparation Notes

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UNIT 1: THE CELL - BASIC UNIT OF LIFE

Key Points

• Cell = basic structural and functional unit of all living organisms
• Two main compartments: nucleus (DNA, gene regulation) and cytoplasm (metabolic activity)
• Cell membrane = phospholipid bilayer with embedded proteins - controls what enters/exits

Cell Organelles (Exam Favourite)

Cell Membrane Functions

• Selective permeability - allows some substances through, blocks others
• Transport mechanisms: diffusion, osmosis, active transport, endocytosis, exocytosis
• Resting membrane potential = -70 mV (maintained by Na⁺/K⁺ pump)

Diagram Description: Cell Structure

Imagine an oval cell. The nucleus sits centrally with the nucleolus inside. Surrounding it is the cytoplasm containing mitochondria (bean-shaped, with inner folds called cristae), rough ER (studded with ribosomes), smooth ER (no ribosomes), Golgi apparatus (stacked flattened discs), and lysosomes (small spheres). The whole cell is bounded by the plasma membrane.

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UNIT 2: TISSUES

Four Basic Tissue Types

1. Epithelial tissue - covers surfaces, lines cavities, forms glands
2. Connective tissue - supports, binds, stores fat, produces blood cells
3. Muscle tissue - movement
4. Nervous tissue - communication and control

Epithelial Tissue Classification

• By layers: Simple (1 layer) / Stratified (multiple layers)
• By shape: Squamous / Cuboidal / Columnar
• Example: Simple squamous = lung alveoli, blood vessels; Stratified squamous = skin, mouth

Connective Tissue Types

• Loose (areolar), dense, cartilage, bone, blood, adipose
• All have cells + matrix (fibres + ground substance)

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UNIT 3: CARDIOVASCULAR SYSTEM

Anatomy of the Heart

Key Points

• Located in the mediastinum, slightly left of midline
• Size: approximately the fist of the person
• Pericardium: outer fibrous sac surrounding the heart; two layers - parietal and visceral (epicardium)
• Four chambers: Right atrium (RA), Right ventricle (RV), Left atrium (LA), Left ventricle (LV)
• Wall layers: Epicardium (outer), Myocardium (middle - muscle), Endocardium (inner)

Heart Valves

Mnemonic: "Try Pulling My Aorta" = Tricuspid, Pulmonary, Mitral, Aortic

Blood Circulation

• Pulmonary circulation: RV → pulmonary artery → lungs → pulmonary veins → LA
  • Right side carries deoxygenated blood
• Systemic circulation: LV → aorta → body → superior/inferior vena cava → RA
  • Left side carries oxygenated blood

Cardiac Cycle (Exam Very Important)

1. Atrial systole (0.1 sec) - atria contract, fill ventricles
2. Ventricular systole (0.3 sec) - ventricles contract, blood pumped out
3. Diastole (0.4 sec) - all chambers relax, heart fills with blood

• Isovolumetric contraction - all valves closed, ventricle building pressure (no change in volume)
• Isovolumetric relaxation - all valves closed, ventricle relaxing (no change in volume)

Heart Sounds

• S1 ("Lub") = closure of mitral and tricuspid valves (start of ventricular systole)
• S2 ("Dub") = closure of aortic and pulmonary valves (end of ventricular systole)

Diagram Description: Cardiac Cycle

A pressure-volume graph: X-axis = LV volume (end-diastolic ~120 mL to end-systolic ~50 mL), Y-axis = LV pressure (0 to ~120 mmHg). The loop progresses: filling (volume rises, low pressure) → isovolumetric contraction (pressure rises, volume stays) → ejection (pressure peaks, volume falls) → isovolumetric relaxation (pressure falls, volume stays) → filling again.

Cardiac Conduction System (Exam Favourite)

• SA node ("Pacemaker") - right atrium wall, sets rhythm at 60-100 bpm
• AV node - junction of atria and ventricles, delays impulse (0.12 sec) to allow ventricular filling
• Bundle of His - travels through interventricular septum
• Purkinje fibres - spread through ventricular walls for rapid, coordinated contraction

ECG Components

• Normal PR interval: 0.12-0.20 sec
• Normal QRS: <0.12 sec

Cardiac Output

• CO = Stroke Volume × Heart Rate
• Normal CO = 5 L/min
• Normal SV = ~70 mL, HR = ~72 bpm
• Factors affecting CO: preload (Frank-Starling law), afterload, contractility, heart rate

Frank-Starling Law

The more the ventricle is stretched (filled) during diastole, the stronger the subsequent contraction. "The heart pumps whatever it receives."

Blood Vessels

Blood Pressure

• Normal BP: 120/80 mmHg (systolic/diastolic)
• Pulse pressure = Systolic - Diastolic = 40 mmHg
• Mean arterial pressure = Diastolic + 1/3 Pulse pressure = ~93 mmHg
• Regulated by: baroreceptors, renin-angiotensin-aldosterone system, ADH, autonomic nervous system

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UNIT 4: RESPIRATORY SYSTEM

Anatomy

Upper Respiratory Tract

• Nose/Nasal cavity - filters, warms, humidifies air; olfaction
• Pharynx - nasopharynx, oropharynx, laryngopharynx
• Larynx - voice box; contains epiglottis (prevents food entering airway), vocal cords

Lower Respiratory Tract

• Trachea - 10-12 cm long; C-shaped cartilage rings; divides at carina into two main bronchi
• Bronchi → Bronchioles → Terminal bronchioles → Respiratory bronchioles → Alveolar ducts → Alveoli
• Lungs: Right lung = 3 lobes; Left lung = 2 lobes (cardiac notch on left)
• Alveoli = functional units of gas exchange; ~300 million; total surface area ~70 m²

Diagram Description: Respiratory Tree

Trachea branches at carina into right (shorter, wider, more vertical) and left main bronchus. Each bronchus enters the lung hilum and divides progressively: lobar bronchi → segmental bronchi → subsegmental → bronchioles → terminal bronchioles → respiratory bronchioles → alveolar ducts → alveolar sacs. Each alveolus is surrounded by a capillary network.

Mechanics of Breathing

Inspiration (Active)

• Diaphragm contracts → moves down
• External intercostals contract → ribs move up and out
• Thoracic volume increases → intrapulmonary pressure falls below atmospheric
• Air flows in

Expiration (Passive at rest)

• Diaphragm and intercostals relax
• Elastic recoil of lungs
• Thoracic volume decreases → pressure rises
• Air flows out

Lung Volumes and Capacities (Very Important for Exam)

Dead space = ~150 mL - air in conducting airways that does not participate in gas exchange

Gas Exchange

• Occurs across the alveolar-capillary membrane (0.5 µm thick)
• Driven by partial pressure gradients:
  • O₂: alveoli pO₂ = 104 mmHg → blood pO₂ = 40 mmHg (O₂ enters blood)
  • CO₂: blood pCO₂ = 45 mmHg → alveoli pCO₂ = 40 mmHg (CO₂ leaves blood)

Oxygen Transport

• 97% carried by haemoglobin (oxyhaemoglobin)
• 3% dissolved in plasma
• Each Hb molecule carries 4 O₂ molecules
• Oxyhaemoglobin dissociation curve = S-shaped (sigmoid)
  • Right shift (increased release of O₂) with: ↑ temperature, ↑ CO₂, ↑ H⁺ (↓ pH), ↑ 2,3-DPG (Bohr effect)

Control of Respiration

• Respiratory centre in medulla oblongata (dorsal and ventral groups) and pons
• Central chemoreceptors - respond to ↑ CO₂ / ↓ pH in CSF (most powerful stimulus)
• Peripheral chemoreceptors (carotid and aortic bodies) - respond to ↓ O₂, ↑ CO₂, ↓ pH

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UNIT 5: NERVOUS SYSTEM

Organisation

Nervous System
├── Central Nervous System (CNS)
│   ├── Brain
│   └── Spinal cord
└── Peripheral Nervous System (PNS)
    ├── Somatic (voluntary)
    └── Autonomic (involuntary)
        ├── Sympathetic ("fight or flight")
        └── Parasympathetic ("rest and digest")

The Neuron

Key Points

• Basic structural and functional unit of nervous system
• Three main parts: Cell body (soma), Dendrites (receive signals), Axon (send signals)
• Myelin sheath - wraps around axon; formed by Schwann cells (PNS) or oligodendrocytes (CNS)
• Nodes of Ranvier - gaps in myelin; allow saltatory (jumping) conduction for speed

Types of Neurons

Action Potential (Exam Favourite)

1. Depolarisation - stimulus causes Na⁺ channels to open; Na⁺ rushes IN; membrane becomes positive (+30 mV)
2. Repolarisation - Na⁺ channels close; K⁺ channels open; K⁺ flows OUT; returns to negative
3. Hyperpolarisation - brief overshoot below resting potential
4. Refractory period - absolute (cannot fire again); relative (can fire with stronger stimulus)

All-or-None Law

An action potential either occurs fully or not at all. Stimulus must reach threshold (~-55 mV).

Synapse

• Junction between two neurons (or neuron + effector)
• Pre-synaptic neuron → releases neurotransmitter → crosses synaptic cleft → binds post-synaptic receptors
• Key neurotransmitters:
  • Acetylcholine (ACh) - neuromuscular junction, parasympathetic
  • Noradrenaline - sympathetic nervous system
  • Dopamine, Serotonin, GABA, Glutamate - CNS functions

Diagram Description: Synapse

Presynaptic terminal contains synaptic vesicles (small spheres) filled with neurotransmitter. An action potential arrives → voltage-gated Ca²⁺ channels open → Ca²⁺ enters → vesicles fuse with membrane → neurotransmitter released into synaptic cleft (20 nm gap) → binds receptors on postsynaptic membrane → generates new potential in postsynaptic neuron.

The Brain

Key Regions

Spinal Cord

• Extends from foramen magnum to L1-L2 (conus medullaris)
• Grey matter (H-shaped, inside) - cell bodies; White matter (outside) - myelinated tracts
• Anterior horn - motor neurons; Posterior horn - sensory neurons
• Reflex arc: Sensory receptor → Afferent nerve → Spinal cord → Efferent nerve → Effector (no brain required)

Autonomic Nervous System

Cranial Nerves (Exam Table)

Mnemonic for names: "On Old Olympus' Towering Tops, A Finn And German Vied At Hops"

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UNIT 6: MUSCULOSKELETAL SYSTEM

Bone

Functions of Bone (Mnemonic: HSSMP)

• H - Haemopoiesis (blood cell production in red bone marrow)
• S - Support (structural framework)
• S - Storage (calcium, phosphorus minerals)
• M - Movement (lever system with muscles)
• P - Protection (brain, spinal cord, heart, lungs)

Bone Types

• Long bones - humerus, femur (have shaft/diaphysis and ends/epiphysis)
• Short bones - carpals, tarsals
• Flat bones - skull, sternum, ribs (protection + large surface for muscle attachment)
• Irregular bones - vertebrae, facial bones
• Sesamoid bones - patella (embedded in tendon)

Bone Cells

Bone Structure Diagram Description

A long bone cut longitudinally: Outer periosteum (fibrous, contains blood vessels and osteoblasts). Below = compact (cortical) bone (dense, strong). Inside = spongy (cancellous) bone (trabecular, lightweight). The hollow center = medullary cavity (contains yellow marrow in adults). Ends = epiphysis covered by hyaline cartilage. The epiphyseal plate (growth plate) in children = zone of active bone growth.

Skeletal Muscle

Structure

• Muscle fibre = single muscle cell (contains multiple nuclei)
• Myofibrils run along the length; contain sarcomeres (contractile units)
• Sarcomere = between two Z lines; contains:
  • Actin filaments (thin)
  • Myosin filaments (thick)

Sliding Filament Theory of Muscle Contraction

1. Motor neuron releases ACh at neuromuscular junction
2. ACh binds receptors → muscle membrane depolarises
3. Action potential travels into T-tubules → triggers Ca²⁺ release from sarcoplasmic reticulum
4. Ca²⁺ binds troponin → tropomyosin moves → exposes actin binding sites
5. Myosin heads attach to actin (cross-bridge formation)
6. Myosin head pivots = power stroke - actin slides toward centre
7. ATP binds → myosin detaches → cycle repeats
8. Sarcomere shortens → muscle contracts

Diagram: Think of actin (thin) and myosin (thick) filaments interdigitating. During contraction, actin slides INWARD (toward M line). Z lines come closer. The I band and H zone shorten; A band stays the same.

Types of Muscle Contractions

• Isotonic - muscle shortens, constant tension (picking up a cup)
• Isometric - muscle doesn't shorten, tension increases (holding a position)

Joints

Synovial Joint Features

• Articular cartilage - hyaline cartilage covering bone ends
• Synovial membrane - produces synovial fluid (lubrication)
• Ligaments - bone to bone (stability)
• Tendons - muscle to bone (movement)

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UNIT 7: RENAL SYSTEM

Anatomy of the Kidney

• Paired organs, retroperitoneal
• Located at T12-L3 level; right kidney slightly lower (due to liver)
• Outer cortex (contains glomeruli and tubules) + inner medulla (contains loops of Henle, collecting ducts)
• Hilum - where ureter, blood vessels, nerves enter/exit

The Nephron - Functional Unit

Parts of the Nephron (in order)

1. Bowman's capsule - surrounds the glomerulus; receives filtrate
2. Proximal convoluted tubule (PCT) - most reabsorption here (Na⁺, glucose, amino acids, water)
3. Loop of Henle (descending + ascending) - concentrates urine, creates osmotic gradient in medulla
4. Distal convoluted tubule (DCT) - fine-tuning of Na⁺, K⁺ and pH
5. Collecting duct - final water reabsorption (controlled by ADH)

Diagram Description: Nephron

A single nephron: Glomerulus (capillary tuft) sits inside Bowman's capsule. Filtrate flows from capsule into PCT (coiled near cortex) → descends into medulla via the thin descending limb of Loop of Henle → hairpin turn → ascending limb back up to cortex → DCT (another coil near cortex) → collecting duct down through medulla → minor calyx → major calyx → renal pelvis → ureter.

Three Processes of Urine Formation

1. Glomerular Filtration
   • Blood is filtered under pressure at the glomerulus
   • Normal GFR = 125 mL/min (~180 L/day filtered)
   • Filters: water, ions, glucose, urea, amino acids
   • Does NOT filter: blood cells, proteins (too large)
2. Tubular Reabsorption
   • Returns needed substances back to blood
   • PCT reabsorbs ~65-70% of filtered water and solutes
   • Glucose, amino acids, Na⁺ - completely reabsorbed in normal conditions
   • ADH controls water reabsorption in collecting duct
3. Tubular Secretion
   • Substances move from blood INTO tubule for excretion
   • Includes: H⁺, K⁺, drugs, toxins
   • Important for pH regulation

Hormonal Control

RAAS (Renin-Angiotensin-Aldosterone System)

↓ BP / ↓ Na⁺ → Kidney releases Renin → converts Angiotensinogen to Angiotensin I → ACE converts to Angiotensin II → causes vasoconstriction + stimulates Aldosterone → kidney retains Na⁺ and water → ↑ BP

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UNIT 8: DIGESTIVE SYSTEM

Layers of the GI Tract Wall (from inside out)

1. Mucosa - inner lining; epithelium + lamina propria + muscularis mucosae
2. Submucosa - connective tissue, blood vessels, nerves (Meissner's plexus)
3. Muscularis externa - inner circular + outer longitudinal smooth muscle; contains Auerbach's plexus
4. Serosa/Adventitia - outer covering

Organs and Functions

Mouth

• Mechanical digestion (chewing = mastication)
• Salivary amylase begins starch digestion
• Saliva: lubricates, antibacterial (lysozyme), starts digestion

Oesophagus

• Muscular tube, 25 cm; connects pharynx to stomach
• No digestion - transport only via peristalsis

Stomach

• Stores food, mixes with gastric juices
• Gastric glands secrete:
  • HCl (parietal cells) - kills bacteria, activates pepsinogen
  • Pepsinogen (chief cells) → activated to Pepsin → digests proteins
  • Intrinsic factor (parietal cells) - required for Vitamin B12 absorption
• Produces chyme (semi-liquid food mass)

Small Intestine (main site of digestion and absorption)

• Surface area maximised by: Plicae circulares → Villi → Microvilli (brush border) = ~200 m² total
• Receives: bile (from liver/gallbladder) + pancreatic juice (amylase, lipase, proteases)
• Absorption:
  • Glucose, amino acids, water-soluble vitamins → capillaries → portal vein → liver
  • Fats → lacteals (lymphatics) → thoracic duct → bloodstream

Large Intestine (Colon)

• Parts: Caecum → Ascending → Transverse → Descending → Sigmoid colon → Rectum → Anal canal
• Functions: Water and electrolyte absorption, formation of faeces, bacterial fermentation (Vit K, B12 produced)
• No significant digestion

Liver Functions (Exam Favourite)

Mnemonic: "SAME MD" - Secretion, Amino acid metabolism, Metabolism (glucose, lipid), Elimination (toxins), Metabolism of drugs, Defence (Kupffer cells)

• Produces bile (stored in gallbladder) - emulsifies fats
• Glycogenesis (stores glucose as glycogen) and Glycogenolysis (releases glucose)
• Gluconeogenesis - makes glucose from non-carbohydrate sources
• Detoxification of drugs, alcohol, ammonia (converted to urea)
• Produces plasma proteins (albumin, clotting factors)
• Stores vitamins (A, D, B12) and iron

Pancreas (Exocrine Function)

• Secretes pancreatic juice (pH 8 - alkaline to neutralise stomach acid)
• Enzymes:
  • Amylase - digests starch to maltose
  • Lipase - digests fats to fatty acids + glycerol
  • Trypsin, Chymotrypsin - digest proteins

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UNIT 9: ENDOCRINE SYSTEM

Key Glands and Hormones

Blood Glucose Regulation

• ↑ Blood glucose → Pancreas β cells → Insulin released → cells take up glucose → glycogen synthesis → blood glucose falls
• ↓ Blood glucose → Pancreas α cells → Glucagon released → glycogenolysis + gluconeogenesis → blood glucose rises

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UNIT 10: BLOOD AND HAEMOPOIESIS

Blood Composition

• Plasma (55%) - water, proteins (albumin, globulins, fibrinogen), electrolytes, nutrients, hormones
• Formed elements (45%):
  • RBCs (Erythrocytes) - 4.5-5.5 million/mm³; carry O₂ via haemoglobin; lifespan 120 days
  • WBCs (Leukocytes) - 5,000-10,000/mm³; immunity
  • Platelets (Thrombocytes) - 150,000-400,000/mm³; clotting

WBC Types (Differential Count)

• Neutrophils (60-70%) - phagocytosis, first line against bacteria
• Eosinophils (1-4%) - allergic reactions, parasites
• Basophils (<1%) - release histamine, heparin

• Lymphocytes (20-30%) - T cells (cell-mediated immunity), B cells (antibody production)
• Monocytes (2-8%) - become macrophages, phagocytosis

Blood Groups

ABO System

Rh System

• Rh positive - has Rh antigen (D antigen); 85% of population
• Rh negative - no D antigen; 15% of population
• Rh incompatibility - Rh-negative mother, Rh-positive baby → risk of haemolytic disease of newborn (HDN)

Haemostasis (Clotting)

1. Vascular spasm - blood vessel contracts
2. Platelet plug formation - platelets adhere to damaged vessel wall and aggregate
3. Coagulation cascade → Fibrin clot
   • Intrinsic pathway - activated by damaged vessel
   • Extrinsic pathway - activated by tissue factor (tissue damage)
   • Both converge → Prothrombin → Thrombin → Fibrinogen → Fibrin

• Vitamin K required for clotting factors II, VII, IX, X

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UNIT 11: REPRODUCTIVE SYSTEM (Key Points)

Male Reproductive System

• Testes - produce spermatozoa (spermatogenesis) + testosterone
• Epididymis - sperm maturation and storage
• Vas deferens - carries sperm to urethra
• Seminal vesicles, Prostate, Bulbourethral glands - produce seminal fluid

Female Reproductive System

• Ovaries - produce eggs (oogenesis), oestrogen, progesterone
• Fallopian tubes - site of fertilisation; carry egg to uterus
• Uterus - implantation and development of foetus
• Endometrium - inner uterine lining; shed during menstruation

Menstrual Cycle (28 days)

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QUICK REVISION: KEY NORMAL VALUES

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EXAM STRATEGY TIPS

1. Describe the cardiac cycle with ECG changes
2. Describe the mechanism of urine formation
3. Explain the sliding filament theory of muscle contraction
4. Describe the regulation of respiration
5. Explain the conduction system of the heart
6. Describe the functions of the liver
7. Explain the structure and functions of the nephron

• Frank-Starling law, ABO blood groups, lung volumes, action potential, neurotransmitters, synovial joints, oogenesis/spermatogenesis, hormones of anterior pituitary

• Cardiac cycle (pressure-volume loop)
• ECG tracing with labelled waves
• Nephron structure
• Sarcomere structure
• Neuron with synapse
• Brain lobes
• Respiratory tree

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🚨 1-HOUR EMERGENCY STUDY PLAN

First 5 minutes - Read this priority list, then go

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⏱️ Minutes 1-15: CARDIOVASCULAR (highest marks)

• Right side = deoxygenated blood; Left side = oxygenated blood
• Valves: Tricuspid → Pulmonary → Mitral → Aortic (blood flows in this order)

SA node → AV node → Bundle of His → Bundle branches → Purkinje fibres

• P wave = atria contract
• QRS = ventricles contract
• T wave = ventricles relax

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⏱️ Minutes 15-30: RESPIRATORY + RENAL

• Tidal Volume = 500 mL
• Vital Capacity = 4600 mL
• Total Lung Capacity = 5800 mL
• Residual Volume = 1200 mL (can't be expelled)

O₂ moves from alveoli → blood. CO₂ moves from blood → alveoli. (High to low pressure)

Filter → Reabsorb → Secrete

• GFR = 125 mL/min
• ADH = water reabsorption; Aldosterone = Na⁺ retention

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⏱️ Minutes 30-45: NERVOUS SYSTEM + MUSCLE

1. Resting = -70 mV
2. Stimulus → Na⁺ rushes IN → depolarisation (+30 mV)
3. K⁺ rushes OUT → repolarisation
4. Returns to -70 mV

Ca²⁺ released → troponin moves → myosin binds actin → power stroke → muscle shortens

• Remember: A band stays same; I band and H zone shorten

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⏱️ Minutes 45-55: BLOOD + HORMONES

• O = universal donor (no antigens)
• AB = universal recipient (no antibodies)

• Insulin → lowers blood glucose
• Glucagon → raises blood glucose
• ADH → retains water
• Aldosterone → retains Na⁺

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⏱️ Minutes 55-60: QUICK SCAN of normal values

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In the exam hall - strategy

• Attempt all questions - partial marks count
• Write definitions first - even if you can't explain fully
• Draw diagrams even if rough - examiners reward diagrams
• Use headings and bullet points - looks organised even with less content
• If you blank on a topic, write what you DO know about that body system - something is always better than nothing

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🚨 BSc NURSING - Applied Psychology & Sociology

2-3 Hour Emergency Cram Guide

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⏱️ STUDY PLAN (2.5 hrs)

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PART A: APPLIED PSYCHOLOGY

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UNIT 1: Introduction to Psychology

Definition

Psychology is the scientific study of human behaviour and mental processes.

Branches of Psychology

Significance in Nursing

• Understand patient behaviour and emotions
• Build therapeutic relationships
• Manage difficult/anxious patients
• Communicate effectively
• Reduce patient anxiety and fear

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UNIT 2: Biological Basis of Behaviour

Body-Mind Relationship

• Mind and body are inseparable - each affects the other
• Physical illness → psychological distress (e.g., cancer → depression)
• Psychological stress → physical symptoms (e.g., anxiety → palpitations, headache)
• Called psychosomatic relationship

Brain and Behaviour

Genetics and Behaviour

• Behaviour is influenced by both genes (nature) and environment (nurture)
• Twin studies show genetic influence on personality, intelligence, mental illness
• Schizophrenia, bipolar disorder have strong genetic components

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UNIT 3: Mental Health

Definition of Mental Health (WHO)

A state of wellbeing in which every individual realises his/her potential, can cope with normal life stresses, can work productively, and is able to make a contribution to the community.

Characteristics of a Mentally Healthy Person

1. Positive self-concept (good self-esteem)
2. Accepts reality
3. Can form and maintain relationships
4. Controls emotions appropriately
5. Adapts to change
6. Has a sense of purpose and meaning
7. Productive and functional in daily life
8. Free from severe psychological symptoms

Levels of Mental Health

• Positive mental health - optimal functioning
• Mental health problems - temporary disturbance
• Mental illness - diagnosable disorder requiring treatment

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UNIT 4: Defence Mechanisms ⭐ (Exam Favourite - Learn All)

Definition

Unconscious psychological strategies used by the ego to protect against anxiety, guilt, and unacceptable thoughts.

Freud's Personality Structure

• Id - primitive instincts, pleasure principle ("I want it NOW")
• Ego - reality principle, mediates between id and superego
• Superego - moral standards, conscience ("should" and "should not")

Key Defence Mechanisms (with examples)

Mnemonic for top 5: "Really Dumb People Regress Dramatically" = Repression, Denial, Projection, Regression, Displacement

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UNIT 5: Developmental Psychology

Erikson's Stages of Psychosocial Development (Exam Favourite)

Freud's Psychosexual Stages

Piaget's Cognitive Development

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UNIT 6: Personality

Definition

Personality is the unique, relatively stable pattern of thinking, feeling, and behaving that characterises a person.

Types (Hippocrates/Galen's temperament types)

Sheldon's Body Type Theory

• Endomorph (fat body) → Viscerotonic (sociable, relaxed)
• Mesomorph (muscular) → Somatotonic (energetic, assertive)
• Ectomorph (thin) → Cerebrotonic (introverted, anxious)

Trait Theory (Allport)

• Cardinal traits - dominant traits that define a person
• Central traits - 5-10 traits that describe a person
• Secondary traits - situational traits

Big Five Personality Traits (OCEAN)

• Openness
• Conscientiousness
• Extraversion
• Agreeableness
• Neuroticism

Personality Assessment Methods

• Projective tests - TAT (Thematic Apperception Test), Rorschach inkblot
• Psychometric tests - MMPI (Minnesota Multiphasic Personality Inventory), 16PF
• Observation, interview, rating scales

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UNIT 7: Cognitive Processes

Attention

Selective focusing of consciousness on certain stimuli.

• Types: Selective, Sustained, Divided, Alternating
• Factors affecting attention: Interest, novelty, intensity, emotional value

Perception

The process of interpreting and organising sensory information to give it meaning.

• More than just sensation - the brain interprets what the senses detect
• Gestalt principles of perception:
  • Figure-Ground - we see objects against backgrounds
  • Proximity - nearby objects grouped together
  • Similarity - similar things seen as a group
  • Closure - we complete incomplete figures
  • Continuity - we follow smooth lines

Memory

Sensory Register → Short-Term Memory (STM) → Long-Term Memory (LTM)
(fraction of sec)     (7±2 items, ~20 sec)       (unlimited, permanent)

• Explicit (Declarative): Episodic (personal events) + Semantic (facts, knowledge)
• Implicit (Procedural): Skills, habits (riding a bike)

• Decay - memory fades without use
• Interference - other memories interfere
• Repression - painful memories pushed down

Learning

A relatively permanent change in behaviour due to experience.

Nursing application: Patient education uses all these principles - reward good health behaviours, model healthy lifestyle, use insight to solve health problems.

Problem Solving

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UNIT 8: Motivation and Emotion

Motivation

Internal state that arouses, directs, and sustains behaviour toward a goal.

Maslow's Hierarchy of Needs ⭐ (Must Know)

         /\
        /  \    5. Self-Actualisation (reaching full potential)
       /    \
      /  4.  \  Esteem (respect, achievement, recognition)
     /--------\
    /    3.    \ Love & Belonging (relationships, family, friends)
   /------------\
  /      2.      \ Safety & Security (shelter, job, health)
 /----------------\
/        1.        \ Physiological (food, water, sleep, air)
--------------------

• Lower needs must be met before higher needs become motivating
• Nursing: Attend to basic physiological and safety needs FIRST before psychological/social needs

Other Motivation Theories

• Herzberg's Two-Factor Theory: Hygiene factors (prevent dissatisfaction) vs Motivators (create satisfaction)
• McClelland: Needs for Achievement, Affiliation, Power
• Drive Reduction Theory: Biological drives (hunger, thirst) motivate behaviour to reduce tension

Emotion

Complex state involving physiological arousal, conscious experience, and expressive behaviour.

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UNIT 9: Stress and Coping

Selye's General Adaptation Syndrome (GAS) ⭐

1. Alarm reaction - "fight or flight" - adrenaline released, HR ↑, BP ↑
2. Resistance - body adapts, tries to cope with stressor
3. Exhaustion - resources depleted, disease/death may occur if stress continues

Coping Strategies

• Problem-focused coping - tackle the stressor directly
• Emotion-focused coping - manage emotional response (relaxation, support)
• Maladaptive coping - substance use, denial, aggression

Nurse's Role in Stress Management

• Active listening and therapeutic communication
• Teaching relaxation techniques (deep breathing, progressive muscle relaxation)
• Providing information to reduce uncertainty
• Social support and referral

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UNIT 10: Soft Skills & Self-Empowerment

Key Soft Skills for Nurses

• Communication - verbal, non-verbal, written
• Empathy - understanding patient's feelings
• Active listening - full attention, not just hearing
• Time management
• Teamwork and collaboration
• Conflict resolution
• Critical thinking

Self-Empowerment Dimensions

• Self-awareness - knowing your strengths/weaknesses
• Self-confidence - belief in own ability
• Self-regulation - controlling emotions and behaviour
• Resilience - bouncing back from setbacks
• Goal setting - SMART goals (Specific, Measurable, Achievable, Relevant, Time-bound)

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PART B: APPLIED SOCIOLOGY

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UNIT 1: Introduction to Sociology

Definition

Sociology is the scientific study of human society, social relationships, social institutions, and social behaviour.

• Coined by Auguste Comte (father of sociology)
• "Society is a network of relationships" - Robert Morrison MacIver

Significance of Sociology in Nursing

• Understand patients' social background, culture, beliefs
• Identify social causes of disease (poverty, overcrowding)
• Work effectively with families and communities
• Address health inequalities
• Plan community health programmes

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UNIT 2: Social Structure

Society

A large group of people sharing a common territory, culture, and institutions.

• Characteristics: Territory, culture, social relationships, continuity, interdependence

Community

A group of people living in a specific geographic area who share common interests and interact with each other.

• Smaller than society; locality-based

Social Groups

• Primary groups - small, intimate, face-to-face (family, friends)
• Secondary groups - large, formal, impersonal (schools, workplace)
• In-groups - groups you belong to ("us")
• Out-groups - groups you don't belong to ("them")
• Reference groups - groups you compare yourself to

Social Processes

Socialisation

The process by which individuals learn and internalise the norms, values, and behaviours of their society.

• Primary socialisation - in family (early childhood)
• Secondary socialisation - school, peers, media, work
• Agents: Family, peer group, school, media, religion

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UNIT 3: Culture

Definition

Culture is the total way of life of a people, including their beliefs, values, norms, customs, language, art, and material objects.

• Coined/defined by E.B. Tylor: "that complex whole which includes knowledge, belief, art, morals, law, custom..."

Characteristics of Culture

1. Learnt (not innate)
2. Shared by members of a group
3. Transmitted across generations
4. Symbolic (language, gestures)
5. Dynamic (changes over time)
6. Integrated
7. Universal (all societies have culture)

Key Culture Concepts

• Norms - rules of expected behaviour (formal/informal)
• Values - shared beliefs about what is good/bad, right/wrong
• Customs - traditional practices passed down generations
• Taboos - strongly prohibited behaviours
• Ethnocentrism - judging other cultures by own culture's standards (barrier in nursing)
• Cultural relativism - understanding cultures on their own terms (ideal for nurses)

Culture and Health

• Cultural beliefs affect: health-seeking behaviour, diet, hygiene, acceptance of treatment
• Example: Some cultures avoid blood transfusions (Jehovah's Witnesses), or prefer traditional healers
• Nurses must be culturally sensitive and competent

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UNIT 4: Family and Marriage ⭐

Family - Definition

A social group of people related by blood, marriage, or adoption, who live together and share economic and emotional bonds.

Types of Family

Functions of Family (Mnemonic: "RESH")

• R - Reproduction (biological function)
• E - Economic support
• S - Socialisation of children
• H - Health care and emotional support

Forms of Marriage

Hindu Marriage Act - passed 1955

Family and Health (Nursing relevance)

• Family is the primary unit of health care
• Health behaviours are learnt in family
• Family support is essential for recovery
• Nurses work with families in community health

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UNIT 5: Social Stratification

Definition

Division of society into layers (strata) based on characteristics like wealth, power, prestige, caste, or class.

Types of Social Stratification

Caste System in India

• Four varnas: Brahmin (priests), Kshatriya (warriors), Vaishya (traders), Shudra (workers)
• Scheduled castes (Dalits) - formerly "untouchables"
• Legal protections under Indian Constitution (Article 17 abolishes untouchability)
• Health impact: lower castes have less access to healthcare

Social Class and Health

• Lower socioeconomic class → higher rates of disease, malnutrition, infant mortality
• Less access to healthcare, education, healthy food
• Nurse's role: Address social determinants of health, advocate for equitable care

Social Mobility

Movement of individuals/groups between social strata

• Upward mobility - moving to higher status (education, career)
• Downward mobility - moving to lower status (job loss, illness)

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UNIT 6: Social Organisation and Disorganisation

Social Organisation

The system of relationships, norms, and institutions that keep society functioning smoothly.

Social Disorganisation

Breakdown of social norms and institutions, leading to social problems.

Major Social Problems (Nurse's Concern)

Social Control

Mechanisms that regulate behaviour to maintain social order

• Formal: Laws, police, courts
• Informal: Family, peer pressure, customs, religion

Social Change

Alteration in social structure, culture, or behaviour over time

• Causes: Technology, education, industrialisation, social movements
• Revolution = rapid, radical change
• Evolution = slow, gradual change

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UNIT 7: Clinical Sociology

Hospital as a Social System

• A formal organisation with defined roles: doctors, nurses, admin, patients
• Has hierarchy, division of labour, rules
• Sick role (Talcott Parsons):
  • Patient is exempt from normal responsibilities
  • Patient must try to get well
  • Patient must seek and cooperate with medical care

Role of Nurse in Society

• Care provider - direct patient care
• Educator - health education to patients and families
• Advocate - speaks up for patient rights
• Coordinator - works with the health team
• Community health worker - preventive care, home visits
• Change agent - promotes healthy behaviours in community

Social Support and Health

Social support = emotional, informational, and material help from social network

• Strong social support → better health outcomes, faster recovery, lower stress
• Isolated patients have higher morbidity and mortality

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⚡ QUICK REVISION: KEY NAMES TO REMEMBER

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⚡ QUICK REVISION: ONE-LINE DEFINITIONS

• Psychology = science of behaviour and mental processes
• Sociology = science of society and social relationships
• Perception = interpreting sensory information
• Motivation = internal force driving behaviour
• Personality = unique, stable pattern of behaviour
• Culture = total way of life of a group
• Socialisation = learning society's norms and values
• Social stratification = layered division of society
• Defence mechanisms = unconscious strategies to reduce anxiety
• Mental health = state of psychological wellbeing
• Family = social group related by blood, marriage, or adoption

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⚡ EXAM STRATEGY (Last 15 minutes before entering hall)

1. Explain Maslow's hierarchy of needs with nursing implications
2. Describe Erikson's 8 stages of psychosocial development
3. Explain defence mechanisms with examples
4. Describe types of family and functions of family
5. Explain social stratification - caste and class systems
6. Describe Selye's General Adaptation Syndrome
7. Explain the significance of sociology/psychology in nursing

• Classical vs Operant conditioning
• Piaget's stages
• Social problems and nurse's role
• Culture and health
• Social support
• Sick role concept
• Types of memory
• Gestalt principles

• Write a definition in the FIRST LINE of every answer
• Use tables and bullet points - saves time, looks organised
• End every answer with "Nursing Implications" - examiners love this
• Draw Maslow's pyramid if asked about motivation - it fills space and scores marks

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