Beginner Quadrangular Space Quiz

Q1. Where is the quadrangular space located?

• Palm of the hand
• Posterior shoulder region
• Cubital fossa
• Anterior wrist

Q2. Which nerve passes through the quadrangular space?

• Axillary nerve
• Median nerve
• Musculocutaneous nerve
• Ulnar nerve

Q3. Which artery passes through the quadrangular space?

• Deep brachial artery
• Posterior circumflex humeral artery
• Circumflex scapular artery
• Radial artery

Q4. Which muscle forms the superior boundary of the quadrangular space?

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

Q5. Which muscle forms the inferior boundary of the quadrangular space?

• Coracobrachialis
• Supraspinatus
• Teres minor
• Teres major

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

• Short head of biceps brachii
• Lateral head of triceps brachii
• Coracobrachialis
• Long head of triceps brachii

Q7. Which structure forms the lateral boundary of the quadrangular space?

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

Q8. Which muscle is primarily supplied by the axillary nerve after it passes through the quadrangular space?

• Deltoid
• Biceps brachii
• Latissimus dorsi
• Pectoralis major

Q9. Which two structures are the principal contents of the quadrangular space?

• Median nerve and brachial artery
• Ulnar nerve and superior ulnar collateral artery
• Axillary nerve and posterior circumflex humeral vessels
• Radial nerve and deep brachial vessels

Q10. The quadrangular space provides a passage from the axilla toward which region?

• Posterior shoulder region
• Cubital tunnel
• Carpal tunnel
• Anterior forearm