Beginner Triangular Space Quiz

Q1. Where is the triangular space located?

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

Q2. Which artery passes through the triangular space?

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

Q3. Which muscle forms the superior boundary of the triangular space?

• Coracobrachialis
• Teres major
• Teres minor
• Deltoid

Q4. Which muscle forms the inferior boundary of the triangular space?

• Supraspinatus
• Teres major
• Biceps brachii
• Teres minor

Q5. Which muscle forms the lateral boundary of the triangular space?

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

Q6. Which structure is the principal content of the triangular space?

• Circumflex scapular vessels
• Axillary nerve
• Radial nerve
• Median nerve

Q7. Which nerve passes through the quadrangular space rather than the triangular space?

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

Q8. Which nerve passes through the triangular interval rather than the triangular space?

• Median nerve
• Ulnar nerve
• Radial nerve
• Axillary nerve

Q9. The triangular space allows vessels to pass from the axillary region toward which area?

• Palm of the hand
• Anterior forearm
• Carpal tunnel
• Posterior scapular region

Q10. Which three muscles define the triangular space?

• Infraspinatus, brachialis, and triceps lateral head
• Teres minor, teres major, and long head of triceps brachii
• Deltoid, supraspinatus, and biceps brachii
• Teres major, deltoid, and coracobrachialis