Скачать или смотреть Physiotherapy MCQs: 1 (no voice over) [Revision Purpose only]

For detailed Explanations: https://t.me/ymcq_explain/575

1. - The common peroneal nerve wraps around the fibular neck, making it vulnerable in femoral fractures.
Foot drop (dorsiflexion weakness) is a hallmark sign.
Sciatic nerve injury (c) would affect both tibial and peroneal divisions, causing broader deficits.

2. - The anatomical snuffbox is bounded by:
Medially: Extensor pollicis longus
Laterally: Extensor pollicis brevis and abductor pollicis longus
Palpation here assesses scaphoid fractures, a common clinical scenario.

3. The common peroneal nerve wraps around the fibular neck, making it vulnerable in femoral fractures. Foot drop (dorsiflexion weakness) is a hallmark sign.

4. The anatomical snuffbox is bounded medially by the extensor pollicis longus.

5. The supraspinatus initiates the first 15° of shoulder abduction.

6. Prolonged sweating and excessive water intake dilute serum sodium.

7. Dopaminergic neurons in the substantia nigra degenerate in Parkinson’s.

8. Initial contact marks heel strike, initiating the stance phase.

9. The ankle acts as a second-class lever during plantar flexion.

10. Gluteus medius weakness leads to femoral adduction (dynamic valgus).

11. Weak abductors increase hip adduction moment during stance.

12. Histamine increases vascular permeability within minutes.

13. Comminuted fractures involve ≥3 fragments.

14. Vitamin C is essential for collagen cross-linking.

15. Synovial inflammation causes ligament laxity in rheumatoid arthritis.

16. Positive SLR at ≤60° indicates nerve root compression.

17. Genu varum increases medial joint loading.

18. Stage 3 involves spasticity-dominated movement.

19. Tenodesis utilizes C6 innervation (extensor carpi radialis).

20. Prolonged expiration prevents airway collapse.

21. Oxygen saturation and heart rate indicate activity tolerance.

22. Diaphragmatic breathing increases tidal volume in restrictive lung disease.

23. Abduction pillows maintain hip alignment.

24. ATNR facilitates rolling via coordinated arm/leg extension.

25. Asymmetric head tilt and plagiocephaly indicate sternocleidomastoid tightness.

26. Proprioceptive training begins after inflammation subsides.

27. O’Brien’s test compresses the labrum.

28. Isometrics reduce tensile stress on the patellar tendon.

29. Pivot shift test assesses ACL-related instability.

30. Primary prevention targets injury prevention before occurrence.

31. Pneumatic tires improve traction on uneven surfaces.

32. Closed-chain exercises promote coordinated movement.

33. RPE correlates with heart rate and oxygen consumption.

34. Parallel bars provide stability for proprioceptive deficits.

35. DC bypasses absent nerve innervation.

36. 150 Hz enhances vasodilation and lymphatic drainage.

37. Grade III targets restricted range with resistance.

38. PA glides enhance lumbar extension.

39. Unilateral PA glides target the atlantoaxial joint.

40. p=0.06 exceeds the α=0.05 threshold.

41. The CI (2–14) does not cross zero, indicating significance.

42. Prolonged sweating and excessive water intake dilute serum sodium.
Cramps, confusion, and nausea characterize hyponatremia.
Hypokalemia (a) typically causes muscle weakness.

43. - Dopaminergic neurons in the substantia nigra pars compacta degenerate in Parkinson’s.
This disrupts basal ganglia circuitry, causing bradykinesia and rigidity.

44. - Initial contact marks heel strike, initiating the stance phase.
Followed by loading response (0–10% of the gait cycle).
Midstance (a) occurs at 10–30%, focusing on single-leg support.

45. - Fulcrum: Ankle joint
Resistance: Body weight on the forefoot
Effort: Gastrocnemius force
Second-class levers provide mechanical advantage for force output.

46. - Gluteus medius weakness reduces hip abduction control, causing femoral adduction (dynamic valgus).
Linked to ACL injury risk and patellofemoral pain.

47. - Mast cell-derived histamine increases vascular permeability within minutes.
Prostaglandins (c) mediate later pain and prolonged vasodilation.

48. - Comminuted fractures involve ≥3 fragments, often from high-impact trauma.
Greenstick fractures (b) are partial breaks seen in pediatric bones.

49. - Vitamin C is a cofactor for prolyl hydroxylase, essential for collagen cross-linking.
Deficiency causes scurvy, characterized by fragile capillaries and impaired tissue repair.

50. - A positive straight leg raise (SLR) at ≤60° indicates nerve root compression, commonly from a herniated disc.
L4-L5 disc herniation affects the L5 nerve root, causing posterior thigh radiation.
Sacroiliac dysfunction (c) localizes pain to the buttock, while piriformis syndrome (d) often spares SLR.

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