Parotid and Temporal Regions; TMJ Flashcards
What is found in the parotid region of the face?
- Parotid gland
- Retromandibular vein
- ECA
- CN VII
Swelling of what gland would push the ear superolateral?
Parotid gland (mumps)
What two veins combine to form the retromandibular vein?
Superficial temporal and maxillary
What does the retromandibular vein drain into?
Posterior branch: EJV
Anterior branch: IJV
T/F: External carotid artery is found just DEEP to retromandibular vein.
TRUE
What are the two terminal branches that the ECA splits into?
Superficial temporal and maxillary
Where does the facial nerve exit the cranium?
Stylomastoid foramen
What are the five branches of the facial nerve that spread across the face from the parotid region?
- Temporal
- Zygomatic
- Buccal
- Marginal mandibular
- Cervical
“To Zanzibar By Motor Car”
What are the arteriole contents of the temporal fossa?
- Deep temporal arteries (maxillary)
- Middle temporal artery (superficial temporal)
- Superficial temporal artery
What are the nervous contents of the temporal fossa?
Auriculotemporal nerve and deep temporal nerves (V3)
What is the function of the auriculotemporal nerve?
- Sensory innervation to TMJ and lateral scalp
2. Carries p-symp fibers from CN IX into parotid gland
What are the borders of the infratemporal fossa?
Lateral: ramus of mandible
Medial: lateral pterygoid plate
Anterior: maxilla
Posterior: tympanic plate, mastoid, and styloid processes
What two foramen are found on the roof of the infratemporal fossa?
Foramen ovale and foramen spinosum
What muscles are found in the infratemporal fossa?
- Temporalis
- Medial pterygoids
- lateral pterygoids
What vasculature is found in the infratemporal fossa?
- Maxillary artery and branches
2. Pterygoid plexus of veins
What nerves are found in the infratemporal fossa?
- V3
- Posterior superior alveolar nerve (V2)
- Chorda tympani (VII)
- Otic ganglion
- Lesser petrosal nerve
T/F: The mandibular nerve (V3) provides sensory only to the mandibular region of the face.
FALSE
Has motor component to innervate MOM
What are the motor branches of V3?
- Masseteric Nerve
- Deep Temporal Nerve
- Med. Pterygoid Nerve
- Lat. Pterygoid Nerve
What are the sensory branches of V3?
- Auriculotemporal
- Buccal
- Inferior Alveolar
- Lingual
- Meningeal branches
What are the four nerves of mastication?
- Masseteric
- Deep temporal
- Med. Pterygoid
- Lat. Pterygoid
What nerve do all nerves of mastication branch from?
Mandibular Nerve (V3)
What is the special sensory nerve that joins with the lingual nerve posteriorly?
Chorda Tympani Nerve
What cranial nerve does Chorda Tympani originate from?
CN VII
What does Chorda Tympani supply?
- Parasympathetic to lower 2 salivary glands
2. Taste from anterior 2/3 of tongue
