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Summary of Posterior compartment of the forearm (radialis muscles)
Extensor carpi radialis longus muscle
The extensor carpi radialis longus is one of the five main muscles that control movements at the wrist. This muscle is quite long, starting on the lateral side of the humerus, and attaching to the base of the second metacarpal bone (metacarpal of the index finger).
Brachioradialis
The brachioradialis is a muscle of the forearm that flexes the forearm at the elbow. It is also capable of both pronation and supination, depending on the position of the forearm. It is attached to the distal styloid process of the radius by way of the brachioradialis tendon, and to the lateral supracondylar ridge of the humerus.
Extensor carpi radialis brevis muscle
In human anatomy, extensor carpi radialis brevis is a muscle in the forearm that acts to extend and abduct the wrist. It is shorter and thicker than its namesake extensor carpi radialis longus which can be found above the proximal end of the extensor carpi radialis brevis.
Flashcards on Posterior compartment of the forearm (radialis muscles)
Posterior compartment of the forearm (radialis muscles)
3 flashcards
Questions on Posterior compartment of the forearm (radialis muscles)
Extensor carpi radialis brevis muscle
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Extensor carpi radialis brevis muscle
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Preview
A 21-year-old woman who is a college-level squash player comes to the clinic because of recent onset of elbow pain. She rates the pain as a 4 on a 10-point scale which has been constant for the past two days and radiates inferiorly along the posterolateral aspect of her elbow and forearm. Her temperature is 37.1°C (98.8°F), pulse is 62/min, respirations are 14/min, and blood pressure is 110/70 mm Hg. Physical examination shows tenderness to palpation near the lateral epicondyle and reproduction of the pain on wrist extension. There is mild swelling without redness at the lateral epicondyle. Which of the following muscles is most likely injured?