A&P 1 Lab - Head and neck muscles (chart)
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9 Terms
Origin: Maxilla and mandible
Insertion: Orbicularis Oris
Action: Compresses Cheeks
Innervation: Facial
Origin: Galea aponeurotica
Insertion: Skin of eyebrow and bridge of nose
Action: Raises eyebrow and wrinkles forehead
Innervation: Facial
Origin: Zygomatic arch
Insertion: Mandible
Action: Elevates mandible
Innervation: Trigeminal
Origin: Occipital bone and mastoid process
Insertion: Galea aponeurotica
Action: Retracts scalp
Innervation: Facial
Origin: Frontal bone and Maxilla
Insertion: Skin surrounding the eyelids
Action: Blinks and squints the eye
Innervation: Facial
Origin: Maxilla and mandible
Insertion: Lips
Action: Compresses the Lips
Innervation: Facial
Origin: Clavicle
Insertion: Mastoid process
Action: Together flexes neck, head to shoulder
Innervation: Spinal
Origin: Frontal, temporal and parietal bones
Insertion: Mandible
Action: Elevates mandible
Innervation: Trigeminal
Origin: Zygomatic bone
Insertion: Corner of mouth and upper lip
Action: Retracts and elevates corners of mouth
Innervation: Facial
Note 
Flashcards (142)