An athlete reports experiencing pain and difficulty during wrist flexion, and the therapist suspects an issue with one of the muscles involved in this action. Which of the following muscles is primarily responsible for wrist flexion?
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✓ Correct answer: D. Flexor carpi radialisAnswer: Flexor carpi radialis The primary muscles responsible for wrist flexion are the flexor carpi radialis and the flexor carpi ulnaris. The flexor carpi radialis helps to flex and abduct the wrist, while the flexor carpi ulnaris also assists in wrist flexion but functions by adducting the wrist. The extensor carpi ulnaris is primarily involved in wrist extension and adduction. The flexor digitorum profundus flexes the fingers and wrist but is not the primary flexor of the wrist. The brachioradialis mainly aids in flexing the elbow.
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