Kinesiology 2222A/B Lecture 8: Muscles of Head and Neck
7 Oct 2016
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Document Summary
Muscles innervated by the same nerve often perform the same function share nervous supply. Each muscle has a primary function may have secondary/tertiary, etc. (mainly know the primary function) Arbitrary names: ex: sartorius muscle crosses your leg greek for tailor (tailor would sit cross legged while they hemmed your pants, sometimes hard to understand. Separated into groups by the main functions of the facial muscles: muscles of facial expression, chewing muscles, muscles of tongue, eye and throat, anterior & posterior neck muscles. Does not only attach to bones attaches to skin and fascia/soft tissue to allow multiple expressions. Large muscles often have more than one function: can choose specifically which fibers you want to use to carry out a certain movement, epicranius. Can be felt when you move your eyebrows up and down. Embedded in the center of two muscles: frontalis & occipitals: orbicularis oculi. Boney attachment, one around each eye: zygomaticus major & minor.
