Intermediate Triangular Space Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. The circumflex scapular artery usually arises from which artery?
- Subscapular artery
- Brachial artery
- Radial artery
- Deep brachial artery
Q2. The subscapular artery usually arises from which part of the axillary artery?
- First part
- It arises only from the brachial artery
- Third part
- Second part
Q3. Which structure separates the triangular space from the quadrangular space?
- Long head of triceps brachii
- Surgical neck of the humerus
- Teres major
- Teres minor
Q4. Which structure forms the medial boundary of the quadrangular space but the lateral boundary of the triangular space?
- Long head of triceps brachii
- Teres major
- Humerus
- Teres minor
Q5. Which vessel passes through the quadrangular space instead of the triangular space?
- A branch of the circumflex scapular artery
- Circumflex scapular vein
- Posterior circumflex humeral artery
- Circumflex scapular artery
Q6. Which artery accompanies the radial nerve through the triangular interval?
- Thoracoacromial artery
- Deep brachial artery
- Circumflex scapular artery
- Posterior circumflex humeral artery
Q7. After passing through the triangular space, the circumflex scapular artery curves around which part of the scapula?
- Coracoid process
- Lateral border
- Superior angle
- Acromion only
Q8. The circumflex scapular artery contributes importantly to which arterial network?
- Elbow anastomosis only
- Carpal arch only
- Scapular anastomosis
- Palmar arterial arch
Q9. Which artery commonly anastomoses with the circumflex scapular artery on the posterior scapular surface?
- Suprascapular artery
- Radial recurrent artery
- Ulnar artery
- Anterior interosseous artery
Q10. Which feature distinguishes the triangular space from the quadrangular space most clearly?
- It is bounded laterally by the surgical neck of the humerus
- It is located in the anterior elbow rather than the shoulder
- It transmits circumflex scapular vessels rather than the axillary nerve and posterior circumflex humeral vessels
- It contains the median nerve rather than the radial nerve