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5 Cards in this Set

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  • Back
Platysma O & I
O: Fascia over Pec Mjr & deltoid

I: Mandible; Skin of lower face
Platysma Action
Drags lower lip down & back.

Opens jaws. Pulls up skin from clavicle.
Platysma Nerve
Facial (VII)
Pec Major O & I
O: Medial clavicle,
Lateral sternum to 7th costal cartilage & cost. cart 2-6.

I: Crest of greater tubercle of Humerus
Pec Major Action
Flexes, Abducts & Rotates arm medially.

With climbing, draws body upward.