NURS140 Lecture Notes - Lecture 4: Frontalis Muscle, Soft Palate, Ischiocavernosus Muscle
30 Nov 2016
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Unit 4: the muscular system & axial musculature. Antagonistic: a muscle that opposes the movement of an agonist (muscle responsible for a specific movement) Synergistic: a muscle that assists a prime mover in performing it"s primary action. Origin: the attachment where the muscle starts, usually stationary and proximal. Insertion: the attachment where the muscle ends, often moves and is distal. If the muscle extends from a broad aponeurosis (wide layer of tendons) to a narrow tendon then: If there are several tendons at one end and only one at the other: The axial muscles fall into four major groups based on location and/or function: muscles of the head and neck that are not associated with the vertebral column. Include those that move the face, tongue and larynx: responsible for verbal and non-verbal communication. I. e. laughing, whistling, smiling, frowning etc: perform movements associated with eating. I. e. sucking, chewing, swallowing: contractions of the eye muscle.
