CN V (Trigeminal) Flashcards Preview

Board Review: Spinal Anatomy CNS Anatomy Review > CN V (Trigeminal) > Flashcards

Flashcards in CN V (Trigeminal) Deck (22)
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1
Q

WHat is the largest mixed cranial N?

A

Trigeminal N

2
Q

The trigeminal N has what 2 nuclei?

A
Large sensory (GSA fibers)
Small motor (SVE: parasympathetic fibers)
3
Q

The motor nucleus of CN V lies in pons and supplies what?

A
Muscles of Mastication:
Temporalis
Internal (medial) Pterygoid
Masseter
External (lateral) Pterygoid
Mylohyoid
Anterior belly of digastric 
Tensor Tympani
Tensor Veli Palatini
4
Q

The three parts of the sensory trigeminal nucleus are?

A

Mesencephalic Nucleus
Main or Principal Sensory Nucleus
Spinal Nucleus

5
Q

The mesencephalic nucleus carries what?

A

Proprioception and is located in Midbrain

6
Q

The main or principal sensory nucleus carries what?

A

Touch and is located in Pons

7
Q

The spinal nucleus carries what?

A

Pain and Temperature and is located in Medulla and extends into upper cervical segments of spinal cord

8
Q

CN V has 3 division that come off the trigeminal ganglion which are?

A

Opthalmic CNV1
Maxillary CNV2
Mandibular CNV3

9
Q

THe ophthalmic division gives off the following branches which pass through superior oribital foramen?

A

NFL
Nasociliary
Frontal
Lacrimal

10
Q

The maxillary division divides into the following branches after exiting through foramen rotundum?

A
PINZ
Pharyngeal
Infraorbital
Nasopalatine
Zygomatic
11
Q

THe mandibular division divides into the following branches after exiting foramen ovale?

A

Anterior and Posterior Divisions

12
Q

Before the mandibular division divides it gives off one branch which is?

A

Medial Pterygoid

13
Q

The anterior division has the following terminal branches?

A

Deep temporal nerves (motor)
N to lateral pterygoid (motor)
N to masseter (motor)
Buccal N (sensory)

14
Q

The posterior division has the following branches?

A

Lingual (sensory)
Auriculotemporal (sensory)
Inferior alveolar (sensory)
Muscular branch to mylohyoid (Motor)

15
Q

What is attached to ophthalmic division of CN V (nasociliary N)?

A

Ciliary Ganglion

16
Q

The ciliary ganglion receives parasympathetic fibers from what?

A

Edinger-Westphal Nucleus of CN III

17
Q

What ganglion is attached to maxillary division of CN V?

A

Pterygopalatine ganglion

18
Q

The pterygopalatine ganglion receives parasympathetic fibers from what?

A

Superior Salivary Nucleus of CN VII

19
Q

What ganglion is attached to auriculotemporal branch of mandibular division of CN V?

A

Otic Ganglion

20
Q

The otic ganglion receives parasympathetic fibers from what?

A

Inferior Salivary Nucleus via CN IX

21
Q

What ganglion is attached to lingual branch of posterior division of the mandibular division?

A

Submandibular Ganglion

22
Q

The submandibular ganglion receives parasympathetic fibers from what?

A

Superior Salivary Nucleus via CN VII