Answer these questions for bds 1st year anatomy board exam of kathamndu university each each question holds 10 marks
analyse_media
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All 17 questions are answered above. Here is a quick reference index to what each question covers and where to find key points:
Quick Reference Summary
| Q# | Topic | Key Points to Remember |
|---|---|---|
| 1 | Joints & Synovial Joints | 3 structural types; 6 features of synovial joint (cavity, articular cartilage, capsule, synovial fluid, ligaments, nerve supply) |
| 2 | Elastic Cartilage Histology | Perichondrium, chondrocytes in lacunae, elastic fiber network (Orcein stain); locations: ear, epiglottis |
| 3 | Long Bone | Diaphysis, epiphysis, metaphysis, periosteum, endosteum; 4 blood supplies: nutrient artery (main), metaphyseal, epiphyseal, periosteal |
| 4 | Sesamoid Bone | In tendons; protect + increase mechanical advantage; examples: Patella (largest) + hallux sesamoids |
| 5 | Epithelium | Simple (squamous/cuboidal/columnar/pseudostratified) + Stratified (squamous keratinized/non-keratinized/transitional) |
| 6 | Cartilage Types | Hyaline (type II, glassy, calcifies); Elastic (elastic fibers, does NOT calcify); Fibrocartilage (type I, no perichondrium, strongest) |
| 7 | Endochondral Ossification | 8 stages; epiphyseal plate zones: Reserve → Proliferating → Hypertrophic → Calcified → Ossification |
| 8 | Smooth Muscle | Spindle-shaped, uninucleate, central nucleus; dense bodies; caveolae; no striations; gap junctions; calmodulin-MLCK pathway |
| 9 | Trachea Histology | 4 layers: mucosa (PCCE + thick BM), submucosa (seromucous glands), C-shaped hyaline cartilage rings, adventitia; trachealis muscle posteriorly |
| 10 | Thin Skin | 4 layers (no stratum lucidum); has hair follicles + sebaceous glands; vs thick skin (5 layers, no hair, palms/soles) |
| 11 | Splenic Circulation | Splenic a. → trabecular → central a. → penicillar → open (cords → sinus slits) or closed → venous sinuses → splenic vein |
| 12 | Thick vs Thin Skin | Key difference: thick has stratum lucidum, no hair; thin has hair but no stratum lucidum |
| 13 | Lymph Node | Outer cortex (B-cell follicles), paracortex (T-cells, HEV), medullary cords (plasma cells), medullary sinuses |
| 14 | Neuron | Cell body (Nissl bodies), dendrites (toward), axon (away from soma, no Nissl at hillock), myelin/Nodes of Ranvier, synapse |
| 15 | Spleen Histology | Capsule + trabeculae, white pulp (PALS + follicles), red pulp (sinuses + cords of Billroth), marginal zone |
| 16 | Skeletal Muscle | Multinucleate, peripheral nuclei, sarcomere (Z-I-A-H-M), triads at A-I junction, epimysium/perimysium/endomysium |
| 17 | Thymus | Fibroelastic capsule → lobules; cortex (dark, packed thymocytes, BTB, cTECs) + medulla (pale, mTECs, AIRE, Hassall's corpuscles) |
Exam tips for Kathmandu University BDS:
- Always draw diagrams even if they ask only for written descriptions - diagrams earn easy marks
- For histology questions, always mention H&E staining characteristics
- For bone/cartilage: always specify type of collagen (I vs II)
- Hassall's corpuscles = pathognomonic of thymus - always mention this
- For lymph node vs spleen: lymph filters lymph; spleen filters blood
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