KINESIOL 3K03 Lecture Notes - Olecranon Fossa, Ulnar Nerve, Radial Nerve

• School: McMaster University
• Department: Kinesiology
• Course: KINESIOL 3K03
• Professor: Krista M Baker

Document Summary

Nerves are very exposed and very easy to damage. Radial nerve, median nerve (anterior side), ulnar nerve (funny bone nerve) Radial and ulnar are the most exposed. Bony stability: very stable joint needs a lot of force to injure it, most of stability comes from ulna (olecranon process) Foosh or not, it"s not very critical to injury. Stretch medial (stretching of capsule; traction and damage of ulnar nerve, mcl, lcl of elbow), compress lateral capetulum (radial head into humerus can cause fracture) Vulnerable tissues? (ulnar nerve, mcl, lcl: hyperextension. Active can damage biceps, passive can damage mcl and anterior capsule of elbow. Bone: during hyperextension, olecranon process will go under compression, have risk of fracture. Dislocation is more common with hyperextension rather than valgus. Biceps (flexors) go into muscle guarding mode and don"t allow full elbow extension (good thing b/c mcl would be stretched in full extension: aggravated by: rom and adl.