Upper Limb Anatomy Quiz
Questions: 16 · 10 minutes
1. A patient develops wrist drop after a midshaft fracture of the humerus. Which nerve was most likely injured?
Radial nerve
Median nerve
Ulnar nerve
Musculocutaneous nerve
2. Which muscle is not part of the rotator cuff?
Infraspinatus
Teres major
Subscapularis
Supraspinatus
3. The proximal radioulnar joint is classified as a pivot joint and primarily contributes to which paired movements?
Flexion and extension of the elbow
Abduction and adduction of the wrist
Elevation and depression of the scapula
Pronation and supination of the forearm
4. A person falls onto an outstretched hand and develops marked tenderness in the anatomical snuffbox. Which bone is most likely fractured?
Lunate
Scaphoid
Pisiform
Capitate
5. A fracture at the surgical neck of the humerus most directly places which nerve at risk?
Musculocutaneous nerve
Ulnar nerve
Median nerve
Axillary nerve
6. After supplying the anterior compartment of the arm, the musculocutaneous nerve continues as which sensory nerve?
Medial cutaneous nerve of the forearm
Lateral cutaneous nerve of the forearm
Superficial branch of the radial nerve
Palmar cutaneous branch of the median nerve
7. After an injury to the long thoracic nerve, the medial border of a patient's scapula protrudes when they push against a wall. Which muscle is primarily affected?
Rhomboid major
Trapezius
Serratus anterior
Pectoralis minor
8. Within the cubital fossa, which major structure lies immediately medial to the biceps brachii tendon?
Brachial artery
Radial nerve
Cephalic vein
Ulnar nerve
9. A patient can flex the thumb but cannot bring its pad across to meet the little finger. Which movement is most specifically impaired?
Extension
Adduction
Opposition
Reposition
10. Compression within the carpal tunnel most directly affects which nerve?
Radial nerve
Ulnar nerve
Axillary nerve
Median nerve
11. Which superficial vein generally ascends along the lateral side of the upper limb?
Basilic vein
Median antebrachial vein
Cephalic vein
Brachial vein
12. In the standard anatomical position, which statement about the upper limb is correct?
The thumb is lateral to the little finger.
The ulna is lateral to the radius.
The palm faces posteriorly.
The elbow is proximal to the shoulder.
13. A person pushes open a heavy door by forcefully extending the elbow. Which muscle and nerve pairing provides the main force for this action?
Biceps brachii and musculocutaneous nerve
Brachialis and radial nerve
Triceps brachii and radial nerve
Pronator teres and median nerve
14. When palpating a pulse on the lateral side of the anterior wrist, which vessel is normally being assessed?
Ulnar artery
Brachial artery
Anterior interosseous artery
Radial artery
15. The palmar and dorsal interosseous muscles of the hand are primarily supplied by which nerve?
Median nerve
Ulnar nerve
Musculocutaneous nerve
Radial nerve
16. Abduction and adduction of the fingers are described relative to which digit?
Middle finger
Thumb
Ring finger
Little finger