bradykin27
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I had a question where a man injured his arm. After the injury, he had deficits in both FLEXION and PRONATION (not suppination) of the forearm. What muscle was most likely injured.
I don't remeber all of the choices but the 3 I remembered was biceps brachii, brachialis, brachioradialis
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| mjl1717
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Well pronator quadratus is too distal and not angulated enough for flexion, so vector-wise it must be pronator teres.{medial epicondyle to lateral radius}
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| bradykin27
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Is there not any way brachioradialis could be correct? I know it has some flexion action and I also thought I remembered that it could act as a pronator when the arm is suppinated. Not sure though.
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| mjl1717
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That may be right since it also attaches at the lateral side base, radial
sytloid
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