Origin: Occipital bone

Insertion: Galea aponeurotica

Action: pulls scalp posteriorly

Origin: Galea aponeurotica

Insertion: Skin of eyebrows

Action: Raise eyebrows; wrinkle forehead

Origin: Frontal bone

Insertion: Skin of eyebrow

Action: Draws eyebrows together; wrinkles forehead

Origin: Frontal and maxillary bones

Insertion: Tissue of eyelid

Action: Draws eyebrows downward (blink, squint)

Origin: Maxilla and mandible (indirect)

Insertion: Muscles and skin at edge of mouth

Action: Closes lips; purses and protrudes lips (kiss)

Origin: Maxilla and mandible

Insertion: Oribicularis oris

Action: Draws corner of mouth laterally

Origin: Zygomatic bone

Insertion: Muscles and skin at edge of mouth

Action: Raises corners of mouth upwards

Origin: Fascia of chest

Insertion: Lower margin of mandible

Action: Depress mandible

Origin: Fascia of masseter

Insertion: Angle of mouth

Action: Draws lips laterally

Origin: Zygomatic and maxilla

Insertion: Skin and muscle of upper lip

Action: Opens lips; flares nostril

Origin: Mandible

Insertion: Skin and muscle of lower lip

Action: Draws lower lip downward