Kinesiology 2222A/B Lecture Notes - Lecture 1: Eustachian Tube, Digastric Muscle, Inferior Rectus Muscle
20 Apr 2016
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Document Summary
Muscles innervated by the same nerve often have the same function, same embryonic origin. Usually named with an idea of what the muscle does, description of function/size/ location(sometimes) Influence function how it moves the bones: ex. shape, location, attachment. Identify muscular compartments: muscles of facial expression b, muscles of the tongue, eye and throat, anterior and posterior neck muscles. 1: muscular attachments, common nerve supply, muscular function. Complex attachments to skin, fascia, and sometimes bone. Insertion: blue- extension to a bone, what"s being pulled, towards the origin (diagram) Large muscles are easy to identify, but they often have multiple functions (more difficult: muscle contractions: can use certain fibres of a large muscle so you can have different movements depending on the fibres you contract. Smiling muscles, draw corners of the mouth up. Buccinator: grouped with facial expression muscles, more discussed along with chewing muscles. Helps move the jaw from side to side.
