Intermediate Biceps Brachii Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Through which groove does the tendon of the long head of the biceps brachii descend after leaving the shoulder joint?
- Suprascapular notch
- Intertubercular sulcus
- Radial groove
- Ulnar groove
Q2. What is the relationship of the long head tendon of biceps brachii to the shoulder joint capsule?
- Embedded within the humeral head
- Entirely outside the joint capsule
- Intracapsular but extrasynovial
- Extracapsular and intrasynovial
Q3. Which muscle lies deep to the biceps brachii over much of the anterior arm?
- Pronator quadratus
- Brachialis
- Anconeus
- Triceps brachii
Q4. Which nerve typically pierces coracobrachialis before descending between biceps brachii and brachialis?
- Median nerve
- Musculocutaneous nerve
- Ulnar nerve
- Axillary nerve
Q5. Which spinal nerve roots provide the main motor contribution to the biceps brachii?
- C7 and C8
- C8 and T1
- C5 and C6
- T1 and T2
Q6. Which artery is the principal source of blood supply to the biceps brachii?
- Brachial artery
- Ulnar artery
- Posterior circumflex humeral artery
- Posterior interosseous artery
Q7. Which structure lies immediately medial to the biceps tendon within the cubital fossa?
- Ulnar nerve
- Radial nerve
- Brachial artery
- Cephalic vein
Q8. Which important structure is protected by the bicipital aponeurosis during venipuncture in the cubital fossa?
- Brachial artery
- Radial artery at the wrist
- Posterior circumflex humeral artery
- Axillary artery
Q9. In which forearm position is the biceps brachii particularly effective as an elbow flexor?
- Fully pronated
- Supinated
- Maximally ulnar deviated
- Maximally wrist extended
Q10. Why does contraction of the biceps brachii produce forearm supination?
- It attaches directly to the carpal bones
- Its insertion on the radius allows it to rotate the radius laterally
- It inserts on the ulna and rotates the ulna medially
- It pulls the interosseous membrane posteriorly