KIN100 Lecture Notes - Lecture 13: Biceps, Anatomical Snuffbox, Anterior Interosseous Nerve
25 Aug 2016
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Lecture 13: tendons, nerves, and vessels of the forearm. Formed from the lateral and medial cords of the brachial plexus. Has no branches until it reaches the elbow. This nerve supplies almost all of the flexor muscles of the forearm. Passes through the cubital fossa and gives off to a deep branch (known as the anterior interosseous nerve, which passes distally along the anterior aspect of the interosseous membrane) Actions: most forearm flexors, 5 muscles in the hand, and skin sensation of the lateral 3 digits. Arises from the medial cord and doesn"t innervate anything until it reaches past the elbow. Lies on the medial side of the arm. Once at the elbow, it passes on the inferior side of the medial epicondyle, and travels on the posterior side of the forearm (what we feel when we hit our funny bone = compressing the ulnar nerve) Passes superficial to the flexor reticulum, in contact with the pisiform bone.
