Muscles of the Face and Scalp

- Those muscles receive motor innervation from branches of the facial nerve (CN VII).

- Rather than inserting into bone, these muscles insert into the dermis of the skin, thus their orchestrated contractions convey various shapes to the face that we interpret as emotions.

Scalp

Muscle	Location	Origin
Frontalis	Forehead	Procerus, corrugator, orbicularis oculi
Occipitalis	Back of the head	Mastoid process and superior nuchal line
Temporoparietalis	Temple	Temporal fascia

Ear

Muscle		Location	Origin
Auricularis anterior	Anterior to ear		Temporal fascia
Auricularis superior	Above ear		Temporal fascia
Auricularis posterior	Behind ear		Mastoid process

Nose

Muscle	Location	Origin
Procerus
Nasalis
Depressor septi

Eye

Muscle		Location	Origin
Orbicularis oculi	Around the orbit		Nasal process of frontal bone, frontal process of maxilla, medial palpebral ligament, and lacrimal bone
Corrugator	Deep to the orbicularis oculi		Medial aspect of superciliary arch

Mouth

Muscle		Location		Origin
Levator labii superioris	Upper lip		Zygoma and maxilla just above infraorbital foramen
Levator labii superioris alaque nasi	Upper lip and side of nose		Maxilla, frontal process
Levator anguli oris	Corner of mouth		Canine fossa of maxilla
Zygomaticus major	Cheek and corner of mouth		Temporal process of zygoma
Zygomaticus minor	Cheek and corner of mouth		Maxillary process of zygoma
Risorius	Cheek		Masseteric fascia
Depressor labii inferioris	Lower lip		Oblique line of mandible
Depressor anguli oris	Corner of mouth		Oblique line of mandible
Mentalis	Chin		Incisive fossa of mandible
Orbicularis oris	Circumscribes the mouth		Muscles in the vicinity, maxilla, nasal septum, mandible
Buccinator	Cheek		Pterygomandibular raphe, alveola arches of mandible and maxilla

Neck

Muscle		Location		Origin
Platysma	Neck and chin		Pectoral and deltoid fascia

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:: World Of Dentistry :: TEAM