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Case Study: Muscle
Name the muscles severed during the amputation event.
During an amputation involving the distal forearm, several key muscles are severed to facilitate the removal of the limb. Among these, the brachioradialis stands out for its role in flexing the forearm at the elbow. Additionally, a group of extensor muscles is impacted, crucial for their function in extending and manipulating the wrist and fingers. These include the extensor carpi radialis longus and brevis, which extend and abduct the wrist; extensor digitorum, responsible for extending the fingers; anconeus, aiding in elbow extension; and extensor carpi ulnaris, which extends and adducts the wrist.
The severance of these muscles significantly impacts hand movement functionality, highlighting their importance in forearm mobility and dexterity.
If the patient were no longer to properly pronate his arm, which muscle do you think has been compromised?
Should the patient lose the ability to adequately turn their arm inward, it might imply harm to the pronator quadratus. This muscle collaborates with the pronator teres, playing a significant role in the turning movement of the forearm. Both these muscles could potentially be impacted when injury occurs.
