Intermediate Anatomical Spaces of the Upper Limb Quiz

Q1. Which muscle forms the lateral boundary of the cubital fossa?

• Brachioradialis
• Brachialis
• Biceps brachii
• Pronator teres

Q2. Which muscle forms the medial boundary of the cubital fossa?

• Pronator teres
• Supinator
• Triceps brachii
• Brachioradialis

Q3. Which structures form the floor of the cubital fossa?

• Pronator teres and brachioradialis
• Flexor carpi radialis and palmaris longus
• Brachialis and supinator
• Biceps brachii and triceps brachii

Q4. Which sequence correctly lists major cubital fossa contents from lateral to medial?

• Ulnar nerve, biceps tendon, axillary artery, median nerve
• Brachial artery, median nerve, radial nerve, biceps tendon
• Median nerve, brachial artery, biceps tendon, radial nerve
• Radial nerve, biceps tendon, brachial artery, median nerve

Q5. Which structure forms the superior boundary of the quadrangular space?

• Latissimus dorsi
• Teres major
• Teres minor
• Long head of triceps brachii

Q6. Which structure forms the lateral boundary of the quadrangular space?

• Anatomical neck of the humerus
• Medial border of the scapula
• Spine of the scapula
• Surgical neck of the humerus

Q7. Which structure separates the quadrangular space from the triangular space?

• Coracobrachialis
• Teres major
• Deltoid
• Long head of triceps brachii

Q8. Which artery accompanies the radial nerve through the triangular interval?

• Deep brachial artery
• Circumflex scapular artery
• Anterior circumflex humeral artery
• Ulnar artery

Q9. Which artery passes through the anatomical snuffbox?

• Ulnar artery
• Radial artery
• Brachial artery
• Common interosseous artery

Q10. Which bones primarily form the floor of the anatomical snuffbox?

• Lunate and triquetrum
• Scaphoid and trapezium
• Capitate and hamate
• Pisiform and hamate