5: Parotid, Temporal Regions & TMJ Flashcards
location of parotid gland
inferior to external acoustic meatus
veins that form the retromandibular v.
superficial temporal v. & maxillary v.
where does the retromandibular v. enter the parotid gland
posterior to the ramus of the mandible
where does the retromandibular v. drain
EJV & IJV
location of the external carotid artery
deep to the retromandibular v.
what are the terminal branches of the external carotid artery
superficial temporal a. & maxillary a.
what structures does the parotid gland contain
facial n., external carotid a., & retromandibular v.
location of the carotid sheath
deep to the parotid bed
components of the carotid sheath
internal carotid a., IJV & vagus n.
where does CN VII exit cranium
via stylomastoid foramen
what does CN VII innervate
mm. of facial expression
branches of the facial nerve
temporal branches temporofacial branches zygomatic branches buccal branches marginal mandibular branches cervical branches posterior auricular nerve cervicofacial branch
what do the buccal branches of CN VII innervate
buccinator m.
what do the cervical branches of CN VII innervate
platysma m.
what can we see in the parotid bed (the stuff behind the gland)
facial n. (CN VII) auriculotemporal n. post. belly of digastric m. accessory n. (CN XI) vagus n. (CN X) internal carotid a. external carotid a. styloid process stylomastoid m.
contents of the temporal fossa
temporal fat pad
temporal fascia
temporalis m.
neurovasculature on the deep surface:
middle temporal a.
superficial temporal a.
deep temporal a.
temporal fat pad
enclosed in temporal fascia
fills out temple region
btwn temporalis m. & lat. wall of orbit
what does the chorda tympani join with
lingual nerve
nn. off of CN V3
auriculotemporal n.
ant. deep temporal n.
post. deep temporal n.
what does the auriculotemporal n. travel with
superficial temporal a. & v.
location of auriculotemporal n.
deep to parotid gland & post. to TMJ
what does auriculotemporal n. innervate
sensory to TMJ & lateral scalp
what does auriculotemporal n. carry
parasympathetic fibers from CN IX into parotid gland
where do the ant. & post. deep temporal nn. pass
superior to lateral pterygoid m. & deep to temporalis m.
