Block 1 Infreatemooral Region

Question 0

What are the branches of the mandibular branch of the trigeminal nerve? V3.

Answer 0

Inferior alveolar - goes into mandibular foramen
Lingual - sensory, supplies anterior 2/3 of tongue
Buccal nerve -nose sorry to the cheek
Mylohyoid - a branch of the inferior alveolar, supplies two muscles

Question 1

Where is the auriculotemporal nerve and what is it from?

Answer 1

It is a sensory nerve serving the lateral head region
Also carries postgsnglionic parasympathetic fibers to the parotid gland whose cell bodies are in the otic ganglion located in the medial side of V3 after it’s exit through the foramen ovale.
Preganglionic fibers are found it CN IX
V3 is the mandibular division of the trigeminal nerve

Question 2

What does the medial pterygoid do?

Answer 2

Closes the jaw.
Inserts into medial side of the mandible
Supplied by V3

Question 3

What is the chorda tympani?

Answer 3

A branch of the facial nerve that joins the lingual nerve.
You have taste fibers from anterior 2/3 of the tongue
You have preganglionic fibers
Lingual does feeling of 2/3 while this one is taste

Question 4

What CNs are parasympathetic?

Answer 4

III, VII, IX, X, and S2,3,4

Question 5

Where do taste fibers have their cell bodies?

Answer 5

The geniculate ganglion

Question 6

If you have a sensory nerve what do you have to have?

Answer 6

A sensory ganglion outside the CNS.

Question 7

Where do the preganglionic cell bodies of the glossopharygeal nerve start and go?

Answer 7

Start in inferior salvitory nucleus and go to the otic ganglion then to the parotid gland

Question 8

What is trigeminal neuralgia (tic douloureux)?

Answer 8

Worst pain known to mankind
Involves V2
Initiated by touching the skin of the cheek or around the tip of the nose.

Question 9

What is Bell Palsy?

Answer 9

Paralysis of the facial muscles affecting one side.

Usually involves facial nerve in the distal facial canal.

Question 10

What does the maxillary artery pass through?

Answer 10

The infratemporal fossa

Question 11

What passes through the two heads of the lateral pterygoid?

Answer 11

The maxillary artery

Question 12

What passes through the foramen spinosum?

Answer 12

The middle meningeal artery

Question 13

What is the auriculotemporal a branch of?

Answer 13

v3

Question 14

What nerve fibers does the auriculotemporal nerve carry besides sensory nerves?

Answer 14

Postganglionic parasympathetic fibers to the parotid gland for salivary action

These have their cell bodies in the otic ganglion
Located of the medial side of V3 as it exits the foramen oval

Question 15

Where are the preganglionic fibers for parasympathetic salivary control?

Answer 15

CN IX

Question 16

What is the inferior salivary nucleus?

Answer 16

Where the preganglionic cell bodies are located for salivation.
Also is the beginning of CN IX glossophayngeal
Found in the medulla

Question 17

What does the chorda tympani carry?

Answer 17

Preganglionic parasympathetic fibers to the submandibular ganglion and sensory taste fibers that have their cell bodies in the geniculate nucleus

Question 18

Where do the tsar fibers of the chorda tympani have their cell bodies?

Answer 18

The geniculate ganglion

Question 19

Where do the preganglionic parasympathetic taste fibers have their cell bodies?

Answer 19

In the superior salvitory nucleus

In the pons, glossophayngeal ?

Question 20

Where do the taste fibers of the facial nerve have their cell bodies?

Answer 20

The geniculate nucleus

Question 21

Where do the preganglionic fibers of taste terminate?

Answer 21

In the submandibular ganglion