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Skeleton Muscles1

Origin Insertion Action-Head and neck

MuscleOriginInsertionAction
Frontalis galea aponeurotica skin of eyebrows and nose raises eyebrows
Zygomaticus Zygomatic bone skin of mouth pulls mouth up; allows smiling
Masseter Zygomatic and maxilla bones mandible closes jaw
Orbicularis Oris encircles the mouth skin at corners of mouth closes and purses lips as in kissing
Temporalis Temporal bone mandible Clenches teeth;elevates jaw
Buccinator Maxilla and mandible orbicularis oris Pulls corners of mouth laterally
Platysma Fascia of Chest mandible and skin of lower face allows pouting;draws lip draw and back
Sternocleidomastoid Sternum and Clavicle mastoid process of temporal bone Drawa head forward;contraction of one muscles causes lateral rotation of head
Occipitalis galea aponeurotica Draws scalp backward
Orbicularis Oculi medial side of orbit encircles eye closes eyelid
Created by: Caya Belton