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Origin: Temporal Bone
Insertion: Coronoid Process and lateral surface of mandible
Action:closes jaw |
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Origin: Lower border of zygomatic arch
Insertion: lateral surface of mandible
Action: closes jaw; grits teeth |
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Origin: Anterior surface of sternum and uppoer surface of clavicle
Insertion: mastoid process of temproal bone
Action: pulls head to one side, to chest, raises sternum |
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Origin: sternal ends of upper ribs
Insertion: coracoid process of scapula
Action: pulls scapula anteriorly and down; raises ribs |
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Origin: outer surface of upper ribs
Insertion: ventral surface of scapula
Action: pulls scapula anteriorly and down |
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Origin: outersurface of lower ribs
Insertion: outer lip of iliac crest and linea alba
Action: tenses abdominal wall and compresses abdominal contents |
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Origin: distal lateral end of humerus
Insertion: lateral surface of radius above styloid process
Action: flexes forearm at elbow |
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Origin: occipital bone
Insertion: skin and muscles around eye
Action: raises eyebrows |
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Origin: maxilla and frontal bone
Insertion: skin around eye
Action: closes eyes |
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Origin: muscles near mouth
Insertion: skin of lips
Action: closes and protrudes lips |
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Origin: occipital bone and spines of cervical and thoracic vertebrae
Insertion: clavicle, spine, scapula
Action: rotates scapula and raises arm; raises scapula; pulls shoulder down |
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Definition
Origin: scapula and clavicle
Insertion: deltoid tubersoity of humerus
Action: abducts arm; flexes/extends humerus |
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| Flexor Digitorum Superficalis |
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| Extensor Digitorum Longus |
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