1. Superior = superior temporal line
2. Inferior = zygomatic arch
3. Floor = greater wing of sphenoid, frontal, squamous temporal, parietal

• Medial: lateral pterygoid plate
• anterior: infratemporal part of the maxilla
• posterior: styloid process of temporal along with the anterior surface of the condylar process of the mandible
• lateral: ramus of the mandible

1. Foramen ovale = V3 and the lesser petrosal nerve
2. Foramen spinosum = middle meningeal artery to the middle cranial fossa

• The coronoid process and condylar process

what is the depression on the anterior surface of the neck for insertion of the lateral pterygoid muscle?

• mandibular notch = masseteric nerve and vessels to the masseter muscle

• On the medial surface of the ramus
• inferior alveolar nerve and vessels that give off the nerve and vessels to the mylohyoid in the mylohyoid groove

Temporalis ms

origin

insertion

fxn

innervation

vessel

• origin = bones of the floor of the temporal fosss and the temporalis fascia
• insertion = coronoid process and anterior border of the ramus of the mandible
• fxn = anterior fibers elevate the mandible and the posterior fibers retract the mandible
• innervation = auricotemporal nerve
• deep temporal artery = maxillary artery branch

masseter

origin

insertion

fxn

innervation

vessel

• Has superficial and deep fibers
• Superficial origin = zygomatic process of maxilla and lower border of the zygomatic arch
• Deep origin = lower border and medial surface of zygomatic arch
• insertion = lateral surfaces of the coronoid proces, ramus, and angle of the mandible.
• deep fxn = elevates
• superficial = protracts

Lateral ptyergoid upper head

origin

insertion

fxn

innervation

vessel

• origin = infratemporal surface of the greater wing of the sphenoid
• insertion = articular disc and upper part of the neck of the mandible
• fxn= protraction, depress jaw

lateral pterygoid lower head

origin

insertion

fxn

innervation

vessel

• main part
• origin = lateral surface fo the lateral pterygoid plate
• insert = pterygoid fovea
• fxn = protraction and depresssion of mandible
• innervation = CN5
• vessels = facial

Medial pterygoid ms (deep head)

origin

insertion

fxn

innervation

vessel

• origin = main one = medial surface of the lateral pterygoid plate
• insertion = medial surface of the angle and ramus of the mandible
• fxn = elevates and protracts jaw
• innervation = V3

medial pterygoid ms. (superficial)

origin

insertion

fxn

innervation

vessel

• origin = maxillary tuberosity
• insertion = same as deep

• GSA = skin of lips and cheeks, teeth
• SVE = muscles of masticaiton (PAM1)

• Anterior and posterior deep temporal nerve to temporalis
• messeteric nerve
• nerve to the lateral pterygoid

• Auriculotemporal n. (TMJ, auricle, parotid gland, and temple)
• Lingual n. (general sensory to the anterior 2/3 tongue and floor of mouth)
• inferior alveolar n. (snesory to the mandibular teeth and gives rise to mental branch (chin and lower lip))

1. SVA = taste buds 2/3rds anterior of tongue
2. GVE = sublingual and submandibular glands

• tenses the soft palate
• dampens sounds from chewing

1. Mandibular part (passes deep to neck of mandible)
2. pterygoid part (passes superficial to the lat. pterygoid ms)
3. pterygopalatine part (passes into pterygopalatine fossa)

1. Inferior alveolar artery (mandibular teeth )
2. Middle meningeal artery (crainal bones)

1. ant/post deep temporal arteries
2. masseteric a.
3. med/lateral pterygoid aa,
4. buccal artery

• passes superiorly between the two roos aof the auriculotemporal nerve into the foramen spinosum

1. Emmissary vein to the cavernous sinus (foramen ovale)
2. Facial vein via deep facial vein
3. inferior opthalmic vein via inferiror orbital fissure

• mandibular fossa
• articular tubercle
• postglenoid tubercle

1. articular part
2. non articular part (tympanic portion of the temporal bone)

1. Stylomandibular ligament (separates the parotid and submandibular gland)
2. Sphenomandibular ligament (funnel anesthesia into the mandibular foramen)

1. Auriculotemporal nerve and masseter nerve
2. maxillary and superficial temporal aa

• avascular fibrous tissue