A&P 1 Lab - Head and neck muscles (chart)

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