KINESIOL 2E03 Lecture Notes - Lecture 12: Radial Sulcus, Clavicle Fracture, Ulnar Nerve
21 Sep 2016
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Document Summary
Brachial plexus spinal nerve room, combining it with other nerves to make the peripheral nerves for the upper extremity. Squeeze through the anterior and middle scalenes on their way down underneath the clavicle. Descend laterally and inferiorly, slightly anteriorly as well. Passes underneath coracoid process of scapula its covered by pectoralis minor (and major) Axilla where the nerves tease apart and split into the radial, ulnar, axillary etc nerves. Top of the extremity, primarily supplies the shoulder / deltoid. Damaged when you dislocate your gh joint causes traction paralysis. Axillary is more about c5-6 since its higher. Pierces the coracobrachialis, feeds anterior compartment of the arm. Travels a bit further down than axillary extra nerve root c5-c7. Runs along the back of the humerus along the radial groove which is a line on the posterior that separates two heads of tricep brachii. Down along back of humerus on way to radial side of elbow.
