Face & Temporal Region

Frontalis

raises eyebrows

Zygomaticus major

smile

Depressor anguli oris

frown

Orbicularis oculi

closes eyes

Orbicularis oris

compresses lips

Platysma

tenses skin of neck

Buccinator

cheek muscle

Bell’s palsy

paralysis of facial muscles due to damage to facial nerve

Facial nerve pathway

through stylomastoid foramen and travels through parotid gland

Common carotid artery branches

internal carotid (circle of willis) and external carotid

Branches of external carotid

maxillary, facial, lingual, superficial temporal

Where do veins of face drain into?

internal jugular vein

Temporalis action

elevates mandible

Masseter action

elevates mandible

Temporalis attachment

temporal line to coronoid process of mandible

Masseter attachment

zygomatic arch to angle of mandible

Temporalis and masseter innervated by…

mandibular branch of trigeminal nerve

Medial and lateral pterygoids actions

move mandible side-to-side

Medial pterygoid attachment

pterygoid fossa to medial mandible

Lateral pterygoid attachment

lateral pterygoid plate to medial mandible and TMJ

Temporomandibular joint (TMJ) action

articulation between condyle of mandible and temporal bone

Parotid gland

salivary gland, connected to oral cavity by parotid duct

What muscle does parotid duct pierce to get into oral cavity?

buccinator