Topic Overview

🩻 Multiple Choice Questions – Chapter: Arm

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A. General & Surface Anatomy (1–6)

Q1. The arm extends between:
A. Shoulder and wrist
B. Shoulder and elbow
C. Elbow and wrist
D. Clavicle and forearm
→ Answer: B. Shoulder and elbow

Q2. The arm is divided into compartments by:
A. Median septum
B. Intermuscular septa
C. Fascial sheets
D. Epimysium
→ Answer: B. Intermuscular septa

Q3. The main artery of the arm is:
A. Axillary artery
B. Brachial artery
C. Radial artery
D. Profunda brachii artery
→ Answer: B. Brachial artery

Q4. The main nerve of anterior compartment of arm:
A. Median nerve
B. Radial nerve
C. Musculocutaneous nerve
D. Ulnar nerve
→ Answer: C. Musculocutaneous nerve

Q5. The posterior compartment of arm is supplied by:
A. Median nerve
B. Radial nerve
C. Ulnar nerve
D. Axillary nerve
→ Answer: B. Radial nerve

Q6. The deep fascia of arm forms:
A. Medial and lateral intermuscular septa
B. Transverse ligament
C. Carpal tunnel
D. Coracoid sheath
→ Answer: A. Medial and lateral intermuscular septa

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B. Muscles of the Arm (7–25)

Q7. Muscles of anterior compartment are collectively called:
A. Extensors of arm
B. Flexors of arm
C. Supinators
D. Pronators
→ Answer: B. Flexors of arm

Q8. Chief flexor of elbow joint is:
A. Biceps brachii
B. Coracobrachialis
C. Brachialis
D. Pronator teres
→ Answer: C. Brachialis

Q9. Chief extensor of elbow joint is:
A. Biceps
B. Triceps
C. Anconeus
D. Supinator
→ Answer: B. Triceps

Q10. Biceps brachii has:
A. One head
B. Two heads
C. Three heads
D. Four heads
→ Answer: B. Two heads

Q11. Long head of biceps arises from:
A. Coracoid process
B. Supraglenoid tubercle
C. Infraglenoid tubercle
D. Acromion
→ Answer: B. Supraglenoid tubercle

Q12. Short head of biceps arises from:
A. Infraglenoid tubercle
B. Coracoid process
C. Clavicle
D. Greater tubercle
→ Answer: B. Coracoid process

Q13. Long head of triceps arises from:
A. Infraglenoid tubercle
B. Coracoid process
C. Glenoid labrum
D. Radial groove
→ Answer: A. Infraglenoid tubercle

Q14. Which muscle is pierced by musculocutaneous nerve?
A. Biceps
B. Brachialis
C. Coracobrachialis
D. Triceps
→ Answer: C. Coracobrachialis

Q15. Which muscle is called the “workhorse of elbow flexion”?
A. Biceps
B. Brachialis
C. Pronator teres
D. Supinator
→ Answer: B. Brachialis

Q16. Which muscle is tested in biceps reflex?
A. Coracobrachialis
B. Biceps brachii
C. Brachialis
D. Triceps
→ Answer: B. Biceps brachii

Q17. Which spinal segments are tested in biceps reflex?
A. C5–C6
B. C6–C7
C. C7–C8
D. C8–T1
→ Answer: A. C5–C6

Q18. Which spinal segments are tested in triceps reflex?
A. C4–C5
B. C5–C6
C. C7–C8
D. T1–T2
→ Answer: C. C7–C8

Q19. Nerve supply of triceps brachii:
A. Median nerve
B. Radial nerve
C. Musculocutaneous nerve
D. Ulnar nerve
→ Answer: B. Radial nerve

Q20. Anconeus muscle assists:
A. Flexion
B. Pronation
C. Extension
D. Supination
→ Answer: C. Extension

Q21. Function of long head of triceps in addition to extension:
A. Flexion of elbow
B. Adduction and stabilization of shoulder
C. Pronation
D. Supination
→ Answer: B. Adduction and stabilization of shoulder

Q22. Which muscle inserts on radial tuberosity?
A. Triceps
B. Biceps
C. Brachialis
D. Anconeus
→ Answer: B. Biceps

Q23. Which muscle inserts on coronoid process of ulna?
A. Coracobrachialis
B. Brachialis
C. Triceps
D. Pronator teres
→ Answer: B. Brachialis

Q24. Which muscle assists triceps in elbow extension?
A. Anconeus
B. Brachioradialis
C. Supinator
D. Pronator teres
→ Answer: A. Anconeus

Q25. Biceps brachii acts as a:
A. Pronator
B. Supinator when elbow flexed
C. Supinator when elbow extended
D. Extensor
→ Answer: B. Supinator when elbow flexed

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C. Nerves of the Arm (26–40)

Q26. Musculocutaneous nerve arises from:
A. Lateral cord
B. Medial cord
C. Posterior cord
D. Upper trunk
→ Answer: A. Lateral cord

Q27. Median nerve is formed by union of:
A. Lateral and posterior roots
B. Lateral and medial roots
C. Upper and lower trunks
D. Radial and ulnar nerves
→ Answer: B. Lateral and medial roots

Q28. Ulnar nerve arises from:
A. Lateral cord
B. Medial cord
C. Posterior cord
D. Middle trunk
→ Answer: B. Medial cord

Q29. Radial nerve arises from:
A. Lateral cord
B. Medial cord
C. Posterior cord
D. Lower trunk
→ Answer: C. Posterior cord

Q30. Radial nerve accompanies which artery in spiral groove?
A. Brachial
B. Profunda brachii
C. Superior ulnar collateral
D. Circumflex humeral
→ Answer: B. Profunda brachii

Q31. Which nerve passes behind medial epicondyle?
A. Radial
B. Ulnar
C. Median
D. Musculocutaneous
→ Answer: B. Ulnar

Q32. “Funny bone” sensation is due to:
A. Median nerve
B. Ulnar nerve
C. Radial nerve
D. Axillary nerve
→ Answer: B. Ulnar nerve

Q33. Nerve supplying lateral cutaneous aspect of forearm:
A. Musculocutaneous
B. Median
C. Radial
D. Ulnar
→ Answer: A. Musculocutaneous

Q34. Injury to radial nerve in spiral groove causes:
A. Wrist drop
B. Claw hand
C. Ape hand
D. Loss of pronation
→ Answer: A. Wrist drop

Q35. Injury to ulnar nerve at elbow causes:
A. Wrist drop
B. Claw hand
C. Ape hand
D. Pointing index
→ Answer: B. Claw hand

Q36. Which nerve is injured in supracondylar fracture of humerus?
A. Ulnar
B. Median
C. Radial
D. Musculocutaneous
→ Answer: B. Median

Q37. Which nerve has no branches in the arm?
A. Median
B. Ulnar
C. Both A and B
D. Radial
→ Answer: C. Both A and B

Q38. Radial nerve lesion in axilla leads to:
A. Partial wrist drop
B. Complete wrist drop
C. Claw hand
D. Ape hand
→ Answer: B. Complete wrist drop

Q39. Biceps reflex tests:
A. C5–C6
B. C6–C7
C. C7–C8
D. C8–T1
→ Answer: A. C5–C6

Q40. Triceps reflex tests:
A. C5–C6
B. C6–C7
C. C7–C8
D. C8–T1
→ Answer: C. C7–C8

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D. Arteries, Veins & Cubital Fossa (41–50)

Q41. Brachial artery begins at:
A. Lower border of teres major
B. Upper border of teres minor
C. Neck of humerus
D. Cubital fossa
→ Answer: A. Lower border of teres major

Q42. Brachial artery divides into:
A. Radial and ulnar arteries
B. Profunda brachii and collateral arteries
C. Axillary and subclavian arteries
D. None
→ Answer: A. Radial and ulnar arteries

Q43. Largest branch of brachial artery is:
A. Radial
B. Profunda brachii
C. Superior ulnar collateral
D. Inferior ulnar collateral
→ Answer: B. Profunda brachii

Q44. Which vein connects cephalic and basilic veins?
A. Brachial vein
B. Median cubital vein
C. Deep vein of arm
D. Axillary vein
→ Answer: B. Median cubital vein

Q45. Which structure lies superficial to brachial artery in cubital fossa?
A. Bicipital aponeurosis
B. Pronator teres
C. Median cubital vein
D. Both A and C
→ Answer: D. Both A and C

Q46. In cubital fossa, contents from medial to lateral are:
A. Radial nerve, Brachial artery, Median nerve
B. Median nerve, Brachial artery, Biceps tendon, Radial nerve
C. Median nerve, Radial artery, Ulnar artery
D. None
→ Answer: B. Median nerve, Brachial artery, Biceps tendon, Radial nerve

Q47. Profunda brachii artery terminates as:
A. Radial and middle collateral arteries
B. Radial and ulnar arteries
C. Superior and inferior ulnar collaterals
D. Radial recurrent arteries
→ Answer: A. Radial and middle collateral arteries

Q48. Injury to brachial artery in supracondylar fracture may cause:
A. Wrist drop
B. Claw hand
C. Volkmann’s ischemic contracture
D. Erb’s palsy
→ Answer: C. Volkmann’s ischemic contracture

Q49. Which structure forms the roof of cubital fossa?
A. Brachialis
B. Supinator
C. Bicipital aponeurosis
D. Pronator teres
→ Answer: C. Bicipital aponeurosis

Q50. Brachial pulse is palpated:
A. Lateral to biceps tendon
B. Medial to biceps tendon
C. Over pronator teres
D. Over lateral epicondyle
→ Answer: B. Medial to biceps tendon