Musculature of the Head

Buccinator Origin

Alveolar process of mandible and maxilla

Buccinator Insertion

Angle of mouth

Buccinator Action

Compresses cheek against molars

Depressor anguli oris origin

Anteriolateral surface of mandibular body

Depressor anguli oris insertion

Angle of mouth

Depressor anguli oris action

Depresses angle of mouth

Frontalis Origin

Galea aponeurotica

Frontalis insertion

Skin and muscle of forehead

Frontalis action

Raises eyebrows / Wrinkles skin of forehead

Occipitalis origin

Superior nuchal line of occipital bone

Occipitalis insertion

Galea aponeurotica

Occipitalis action

Tenses scalp and moves outer ear

Orbicularis oculi origin

Medial margin of bony orbit

Orbicularis oculi insertion

Eyelid

Orbicularis Oculi Action

Closes eyelids

Orbicularis Oris Origin

Maxilla and Mandible

Orbicularis Oris Insertion

Skin surrounding mouth

Orbicularis oris Action

Closes and purses lips

Zygomaticus major origin

Zygomatic bone

Zygomaticus major insertion

Angle of mouth

Zygomaticus major action

Raises angle of mouth

Temporalis Origin

Temporal fossa

Temporalis insertion

Coronoid process of mandible

Temporalis action

Closes jaw / Elevates mandible

Masseter origin

Zygomatic arch

Masseter insertion

Mandibular angle and ramus

Masseter action

Closes(elevates) and retracts mandible

Platysma origin

Skin of lower neck and upper thorax

Platysma insertion

lower mandible and skin of the lower face

Platysma action

Tense skin of neck and depresses mandible

Risorius origin

Fascia associated with masseter

Risorius insertion

Angle of mouth

Risorius action

Draws angle of mouth to side

Superior rectus action

Elevates eye

Inferior rectus action

Depresses eye

Lateral rectus

Moves eye laterally

Medial rectus action

Moves eye medially

Inferior oblique action

Elevates eye and moves eye laterally

Superior oblique action

Depresses eye and moves eye laterally