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Questions and Answers
Which muscle originates from the upper 2/3 of the lateral supracondylar ridge of the humerus?
Which muscle originates from the upper 2/3 of the lateral supracondylar ridge of the humerus?
- Brachioradialis (correct)
- Extensor carpi radialis longus
- Abductor pollicis longus
- Supinator
What is the action of the brachioradialis muscle?
What is the action of the brachioradialis muscle?
- Extension of the wrist
- Abduction of the thumb
- Flexion of the elbow at midprone position (correct)
- Rotation of the forearm
Which muscle is responsible for extending the thumb?
Which muscle is responsible for extending the thumb?
- Abductor pollicis longus
- Supinator
- Extensor pollicis brevis (correct)
- Extensor indicis
Which muscle originates from the front of the lateral epicondyle?
Which muscle originates from the front of the lateral epicondyle?
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What is the nerve supply of the extensor carpi radialis longus muscle?
What is the nerve supply of the extensor carpi radialis longus muscle?
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Which muscle is responsible for extending the index finger?
Which muscle is responsible for extending the index finger?
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What is the insertion point of the brachioradialis muscle?
What is the insertion point of the brachioradialis muscle?
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Which muscle is responsible for abduction of the thumb?
Which muscle is responsible for abduction of the thumb?
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What is the action of the extensor pollicis longus muscle?
What is the action of the extensor pollicis longus muscle?
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Which muscle is located in the deep layer of the forearm?
Which muscle is located in the deep layer of the forearm?
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