Human muscle list spring 09

Human muscle list spring 09 - Human muscle list - by region...

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Human muscle list - by region to identify only (Muscles with * - know also origin and insertion) Muscle name Action Origin Insertion Clinical importance Head - Facial expression frontalis occipitalis Wrinkles forehead and elevate eyebrows Orbicularis oculi Closes eye Zygomaticus Major and minor Elevates angle of mouth Risorius Retracts angle of mouth Orbicularis oris Narrows orifice of mouth, Mastication Masseter Temporalis Buccinator Anterolateral muscles of the Human Neck * Sternocleidomastoid Together flex the neck; one side – bends head towards shoulder Clavicular head-clavicle; sternal head - sternum mastoid process of temporal bone Landmark for jugular furrow and Jugular Veins Abdominal Wall Core support; defecation Rectus abdominis External oblique Internal oblique Transversus abdominus
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Thorax and Shoulder, Superficial * Pectoralis major Rotate and adducts shoulder Clavicle, sternum and ribs humerus Pectoralis minor Elevates ribs if scapula fixed, protracts scapula Serratus anterior
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This note was uploaded on 01/07/2012 for the course BIO 2401 taught by Professor Joselchou during the Spring '11 term at Collins.

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Human muscle list spring 09 - Human muscle list - by region...

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