Beginner Supinator Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. In which compartment of the forearm is the supinator located?
- Posterior compartment
- Hypothenar compartment
- Thenar compartment
- Anterior compartment
Q2. The supinator belongs to which layer of the posterior forearm muscles?
- Superficial layer
- Superficial anterior layer
- Deep layer
- Intermediate anterior layer
Q3. What is the primary action of the supinator muscle?
- Pronation of the forearm
- Extension of the fingers
- Flexion of the wrist
- Supination of the forearm
Q4. On which forearm bone does the supinator insert?
- Radius
- Ulna
- Scaphoid
- Humerus only
Q5. Which humeral landmark contributes to the origin of the supinator?
- Lateral epicondyle
- Medial epicondyle
- Lesser tubercle
- Greater tubercle
Q6. Which ulnar landmark provides an attachment for the supinator?
- Coronoid tip only
- Supinator crest
- Ulnar styloid process
- Head of the ulna
Q7. Which nerve directly supplies the supinator?
- Anterior interosseous nerve
- Deep branch of the radial nerve
- Median nerve
- Ulnar nerve
Q8. Which other muscle is a powerful supinator of the forearm?
- Biceps brachii
- Flexor carpi ulnaris
- Pronator quadratus
- Pronator teres
Q9. During forearm supination, how does the radius move relative to the ulna?
- It crosses anteriorly over the ulna
- It rotates laterally and becomes approximately parallel with the ulna
- It moves proximally without rotating
- It remains fixed while the ulna rotates around it
Q10. Which movement is opposite to the action of the supinator?
- Finger abduction
- Elbow flexion
- Wrist extension
- Pronation