generate high yield mcqs for batterjee medical college exams jeddah i have less time to revise so make sure to generate mcqs most likely to come in my Respiration Circulation block 2026 finals batterjee medicAL COLLEGE

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I now have everything I need. Let me compile a comprehensive, high-yield MCQ set drawing from the PDF (Dr. Mohamed Awad's anatomy notes) and core physiology/cardiology principles from the textbook library.

🩺 High-Yield MCQs — Respiration & Circulation Block

Batterjee Medical College | 2026 Finals

Based on Dr. Mohamed Awad's Anatomy Notes + Physiology/Cardiology Textbooks

📘 SECTION A: ANATOMY (From Your PDF — Dr. Mohamed Awad)

Lecture 1 — Nasal Cavity

Q1. Which structure drains into the superior meatus?

A) Nasolacrimal duct
B) Anterior ethmoidal sinus
C) Maxillary sinus
D) Posterior ethmoidal sinus ✅

Q2. The hiatus semilunaris receives drainage from:

A) Posterior ethmoidal sinus
B) Nasolacrimal duct
C) Anterior ethmoidal, maxillary, and frontal sinuses ✅
D) Middle ethmoidal sinus

Q3. The nasolacrimal duct drains into the:

A) Superior meatus
B) Sphenoethmoidal recess
C) Hiatus semilunaris
D) Inferior meatus ✅

Lecture 2 & 3 — Larynx

Q4. The larynx lies opposite which vertebral level?

A) C4–C6 ✅
B) C3–C6
C) C5–C7
D) C6–C7

Q5. The thyrohyoid membrane is pierced by:

A) Superior laryngeal artery only
B) Internal laryngeal nerve only
C) Recurrent laryngeal nerve
D) Superior laryngeal vessels AND internal laryngeal nerve ✅

Q6. Which muscle is responsible for ABDUCTION of the vocal cords?

A) Lateral cricoarytenoid
B) Transverse cricoarytenoid
C) Posterior cricoarytenoid ✅
D) Cricothyroid

Q7. Tension of the vocal cords (producing high-pitched sound) is performed by:

A) Thyroarytenoid
B) Posterior cricoarytenoid
C) Cricothyroid ✅
D) Vocalis

Q8. All laryngeal muscles are supplied by the recurrent laryngeal nerve EXCEPT:

A) Posterior cricoarytenoid
B) Lateral cricoarytenoid
C) Cricothyroid (by external laryngeal nerve) ✅
D) Transverse arytenoid

Q9. Sensation ABOVE the vocal cords is carried by:

A) Internal laryngeal nerve ✅
B) External laryngeal nerve
C) Recurrent laryngeal nerve
D) Glossopharyngeal nerve

Q10. Complete injury to the recurrent laryngeal nerve causes:

A) Suffocation
B) Low-pitched sound
C) Aphonia (loss of voice) ✅
D) Partial paralysis only

Q11. The superior laryngeal artery is a branch of the:

A) Superior thyroid artery ✅
B) Inferior thyroid artery
C) Facial artery
D) External carotid artery directly

Lecture 4 — Tracheobronchial Tree

Q12. The trachea begins at which cervical vertebral level?

A) C4
B) C5
C) C6 ✅
D) C3

Q13. The trachea bifurcates (carina) at the level of:

A) T2
B) T3
C) T1
D) T4 ✅

Q14. The angle between the trachea and the LEFT main bronchus is:

A) 25°
B) 30°
C) 40°
D) 45° ✅ (Right bronchus is more vertical ~25°; foreign bodies go right)

Q15. A child aspirates a bead. Where is it most likely to lodge?

A) Left main bronchus
B) Right main bronchus ✅
C) Apicoposterior segment of left lung
D) Terminal bronchiole of left lung

High-yield reason: Right main bronchus is wider, shorter, and more vertical.

Q16. The right lung has how many bronchopulmonary segments?

A) 8
B) 10 ✅
C) 9
D) 7

Lecture 5 — Anatomy of the Lung

Q17. Bronchial arteries to the LEFT lung arise from:

A) Arch of aorta
B) Descending thoracic aorta ✅
C) Left pulmonary artery
D) Left subclavian artery

Q18. The most superior structure in the hilum of the LEFT lung is:

A) Main bronchus
B) Inferior pulmonary vein
C) Pulmonary artery ✅
D) Superior pulmonary vein

Q19. A groove on the anterior surface of the apex of the LEFT lung is caused by:

A) Left subclavian vein
B) Left subclavian artery ✅
C) Right subclavian artery
D) Aortic arch

Q20. The lingula is part of which lobe?

A) Lower lobe of the left lung
B) Upper lobe of the right lung
C) Upper lobe of the left lung ✅
D) Middle lobe of the right lung

Q21. The pulmonary ligament is located:

A) Superior to the root of the lung
B) Inferior to the root of the lung ✅
C) Medial to the root of the lung
D) Lateral to the root of the lung

Q22. The right bronchial vein drains into the:

A) Hemiazygos
B) Azygos vein ✅
C) SVC
D) IVC

Q23. The left bronchial vein drains into the:

A) Hemiazygos vein ✅
B) Azygos vein
C) SVC
D) IVC

Lecture 6 — Pleura & Surface Anatomy

Q24. The apex of the lung projects how far above the middle third of the clavicle?

A) 1 inch ✅
B) 2 inches
C) 0.5 inch
D) At the sternoclavicular joint

Q25. The inferior border of the LUNG at the midclavicular line crosses the:

A) 6th rib ✅
B) 8th rib
C) 10th rib
D) 4th rib

Q26. The inferior border of the PLEURA at the midscapular line crosses the:

A) 8th rib
B) 10th rib
C) 6th rib
D) 12th rib ✅

Q27. Visceral pleura is innervated by:

A) Autonomic nerves ✅
B) Intercostal nerves
C) Phrenic nerve
D) Not innervated (insensitive to pain)

Q28. The phrenic nerve supplies which part of the parietal pleura?

A) Costal pleura and peripheral diaphragmatic
B) Mediastinal pleura and central diaphragmatic ✅
C) Costal pleura and central diaphragmatic
D) All parietal pleura equally

Lecture 7 — Intercostal Spaces

Q29. The external intercostal muscle is REPLACED anteriorly by the:

A) Anterior (external) intercostal membrane ✅
B) Posterior intercostal membrane
C) Innermost intercostal
D) Subcostalis

Q30. Which intercostal nerve(s) are classified as TYPICAL?

A) T1 & T2
B) T1–T7
C) T3–T6 ✅
D) T7–T12

Q31. The upper 6 anterior intercostal arteries arise from the:

A) Internal thoracic artery ✅
B) Musculophrenic artery
C) Superior epigastric artery
D) Descending aorta

Q32. The internal thoracic artery is a branch of the:

A) 1st part of the subclavian artery ✅
B) 2nd part of subclavian
C) 3rd part of subclavian
D) Brachiocephalic trunk

Q33. The 1st posterior intercostal vein drains into the:

A) Brachiocephalic vein ✅
B) Azygos
C) Hemiazygos
D) IVC

Q34. The 4th–11th RIGHT posterior intercostal veins drain into the:

A) Azygos vein ✅
B) Hemiazygos
C) Brachiocephalic
D) SVC

Q35. The 4th–8th LEFT posterior intercostal veins drain into the:

A) Azygos
B) Inferior hemiazygos
C) Superior hemiazygos ✅
D) Brachiocephalic

Lecture 8 — Diaphragm

Q36. The sternal origin of the diaphragm is the:

A) Manubrium
B) Sternal body
C) Sternal angle
D) Xiphoid process ✅

Q37. The right crus originates from:

A) Upper 2 lumbar vertebrae
B) Upper 3 lumbar vertebrae ✅
C) Upper 4 lumbar vertebrae
D) All lumbar vertebrae

Q38. The left crus originates from:

A) Upper 2 lumbar vertebrae ✅
B) Upper 3 lumbar vertebrae
C) Upper 4 lumbar vertebrae
D) All lumbar vertebrae

Q39. Which opening in the diaphragm is at T8?

A) Vena caval opening ✅
B) Esophageal opening
C) Aortic opening
D) Hemiazygos hiatus

Q40. The esophageal opening is at which level?

A) T8
B) T10 ✅
C) T12
D) L1

Q41. The aortic opening is at which level?

A) T8
B) T10
C) T12 ✅
D) L2

Q42. The esophageal opening passes through the:

A) Central tendon
B) Left crus
C) Right crus ✅
D) Median arcuate ligament

Memory trick: "Eat At Ten" — Esophagus At T10. "Aorta At Twelve." "IVC At Eight (T8)."

Lecture 9 & 10 — Mediastinum

Q43. The mediastinum is divided by an imaginary line from the sternal angle to:

A) T4 ✅
B) T6
C) T8
D) T2

Q44. The thymus gland is found in which mediastinal compartment(s)?

A) Superior AND anterior mediastinum ✅
B) Posterior mediastinum
C) Middle mediastinum
D) Superior and middle mediastinum

Q45. The ascending aorta is found in the:

A) Superior mediastinum
B) Middle mediastinum ✅
C) Posterior mediastinum
D) Anterior mediastinum

Q46. The aortic arch is found in the:

A) Superior mediastinum ✅
B) Middle mediastinum
C) Posterior mediastinum
D) Anterior mediastinum

Q47. The descending aorta is found in the:

A) Superior mediastinum
B) Middle mediastinum
C) Posterior mediastinum ✅
D) Anterior mediastinum

Q48. The thoracic duct crosses from right to left at the level of:

A) T4
B) T5 ✅
C) T6
D) T7

Q49. The thoracic duct does NOT drain which of the following?

A) Right upper limb ✅
B) Left upper limb
C) Lower limbs
D) Abdomen

The right lymphatic duct drains the right upper limb and right side of head/thorax.

Q50. A patient presents with dyspnea, dysphagia, dysphonia, and engorgement of veins in the upper body. What is the most likely diagnosis?

A) Tension pneumothorax
B) Pulmonary embolism
C) Mediastinal syndrome (superior mediastinal syndrome) ✅
D) Cardiac tamponade

📗 SECTION B: PHYSIOLOGY — Respiration & Circulation

Q51. The V/Q ratio is HIGHEST in which zone of the lung (upright position)?

A) Apex (Zone 1) ✅
B) Base (Zone 3)
C) Middle (Zone 2)
D) Same throughout

Apex: high V/Q (wasted ventilation); Base: low V/Q (wasted perfusion).

Q52. In Zone 3 of West's lung zones, which pressure relationship applies?

A) Pa > Pv > PA
B) PA > Pa > Pv
C) Pa > PA > Pv
D) Pa > Pv > PA ✅

Pa = arterial, Pv = venous, PA = alveolar pressure.

Q53. Physiological dead space includes:

A) Anatomical dead space only
B) Alveolar dead space only
C) Anatomical dead space + alveolar dead space ✅
D) Neither

Q54. Which of the following BEST describes the Bohr effect?

A) Increased PO2 shifts oxyhemoglobin curve left
B) Increased PCO2/H⁺ shifts oxyhemoglobin curve right ✅
C) Increased temperature shifts curve left
D) Increased 2,3-DPG shifts curve left

Q55. Carbon dioxide is transported in blood MAINLY as:

A) Dissolved CO2
B) Carbaminohemoglobin
C) Bicarbonate (HCO3⁻) ✅
D) Carbonic acid

~70% as HCO3⁻, ~20% carbaminohemoglobin, ~10% dissolved.

Q56. What is the normal PO2 in alveolar air (PAO2)?

A) 40 mmHg
B) 60 mmHg
C) 104 mmHg ✅
D) 150 mmHg

Q57. Compliance of the lung is DECREASED in:

A) Emphysema
B) Pulmonary fibrosis ✅
C) Old age
D) Asthma

Emphysema INCREASES compliance (destroyed elastic recoil).

Q58. Surfactant is produced by which cells?

A) Type I pneumocytes
B) Type II pneumocytes ✅
C) Clara cells
D) Alveolar macrophages

Q59. What is the primary stimulus for breathing in a healthy individual?

A) Low PO2
B) Elevated PCO2 (hypercapnia) ✅
C) Low pH alone
D) Reduced O2 saturation

Q60. Hypoxic pulmonary vasoconstriction (HPV):

A) Increases blood flow to poorly ventilated areas
B) Diverts blood away from poorly ventilated areas ✅
C) Is mediated by nitric oxide
D) Only occurs in pathological states

📕 SECTION C: CARDIOVASCULAR PHYSIOLOGY

Q61. Cardiac output is determined by:

A) Heart rate × end-diastolic volume
B) Heart rate × stroke volume ✅
C) Preload × afterload
D) Mean arterial pressure / systemic vascular resistance

Q62. Which factor does NOT directly increase stroke volume?

A) Increased preload (Frank-Starling)
B) Increased contractility
C) Increased afterload ✅
D) Decreased heart rate (slightly)

Q63. The Frank-Starling law states that:

A) Heart rate increases with venous return
B) Stroke volume increases with increased end-diastolic volume ✅
C) Cardiac output is constant regardless of preload
D) Contractility decreases with increased ventricular filling

Q64. During the cardiac cycle, the mitral valve CLOSES when:

A) Left ventricular pressure falls below aortic pressure
B) Left ventricular pressure exceeds left atrial pressure ✅
C) Ventricular relaxation begins
D) Atrial systole begins

Q65. The second heart sound (S2) is caused by:

A) Closure of mitral and tricuspid valves
B) Closure of aortic and pulmonary valves ✅
C) Rapid ventricular filling
D) Atrial contraction

Q66. Mean arterial pressure (MAP) is best calculated as:

A) Systolic + Diastolic / 2
B) Diastolic + 1/3 (Pulse pressure) ✅
C) Systolic − Diastolic
D) Cardiac output × heart rate

Q67. The phase of the cardiac cycle with the LONGEST duration is:

A) Systole
B) Diastole ✅
C) Isovolumetric contraction
D) Isovolumetric relaxation

Q68. Increased afterload leads to:

A) Increased stroke volume
B) Decreased stroke volume ✅
C) Decreased end-systolic volume
D) No change in cardiac output

Q69. Which autonomic effect slows the heart rate (negative chronotropy)?

A) Sympathetic stimulation of SA node
B) Parasympathetic (vagal) stimulation of SA node ✅
C) Catecholamine release
D) Increased circulating epinephrine

Q70. The normal resting cardiac output is approximately:

A) 3 L/min
B) 5 L/min ✅
C) 7 L/min
D) 10 L/min

🗂️ QUICK-REFERENCE SUMMARY TABLE

Topic	Key Fact
Trachea starts	C6
Trachea bifurcates	T4
Right bronchus angle	~25° (foreign bodies go here)
Left bronchus angle	~45°
Right lung segments	10
Lung apex projects	1 inch above middle 1/3 of clavicle
Lung inferior border (MCL)	6th rib
Pleura inferior border (MCL)	8th rib
Pleura inferior border (scapular)	12th rib
IVC opening	T8 (central tendon)
Esophageal opening	T10 (right crus)
Aortic opening	T12
Right crus origin	L1-L3
Left crus origin	L1-L2
Mediastinum dividing line	Sternal angle → T4
Thoracic duct crosses midline	T5
Thoracic duct drains	Everything EXCEPT right upper body
Vocal cord abductor	Posterior cricoarytenoid
Only muscle NOT by RLN	Cricothyroid (external LN)
V/Q ratio highest	Apex
Surfactant produced by	Type II pneumocytes
CO2 transport (main)	HCO3⁻ (~70%)
Normal PAO2	104 mmHg
Normal cardiac output	5 L/min
S1 = closure of	Mitral + Tricuspid (AV valves)
S2 = closure of	Aortic + Pulmonary (semilunar)

Exam strategy: Focus especially on diaphragm openings (T8/T10/T12), lung/pleura surface markings, bronchus angles (foreign body aspiration), vocal cord muscles + nerve supply, mediastinal compartments, and V/Q physiology. These are the most frequently tested topics in Respiration & Circulation blocks at Saudi medical colleges.

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