Flexor Carpi Ulnaris

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Original Author(s): Oliver Jones
Last updated: October 5, 2022
Revisions: 5

Original Author(s): Oliver Jones
Last updated: October 5, 2022
Revisions: 5

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The flexor carpi ulnaris is a muscle within the superficial compartment of the anterior forearm.

  • Attachments: 
    • Originates from the medial epicondyle of the humerus and the olecranon of the ulna.
    • Attaches to the pisiform bone, hook of hamate, and base of the 5th metacarpal.
  • Actions: Flexion and adduction at the wrist.
  • Innervation: Ulnar nerve.
  • Blood supply: Ulnar artery and posterior ulnar recurrent artery

Fig 1 – The superficial muscles of the anterior forearm.