Trigeminal Nerve Flashcards Preview

_Anat./GIE #4 > Trigeminal Nerve > Flashcards

Flashcards in Trigeminal Nerve Deck (38)
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1
Q

What are the three major divisions of the trigeminal nerve?

A

V1 ophthalmic nerve
V2 maxillary nerve
V3 mandibular nerve

2
Q

Where does the ophthalmic nerve exit the middle cranial fossa?

A

superior orbital fissure

3
Q

Where does the maxillary nerve exit the middle cranial fossa?

A

foramen rotundum

4
Q

Where does the mandibular nerve exit the middle cranial fossa?

A

foramen ovale

5
Q

What 4 branches arise from V1?

A

tentorial nerve
nasociliary nerve
frontal nerve
lacrimal nerve

6
Q

What branches arise from V2?

A
meningeal branch of the maxillary nerve
zygomatic nerve
ganglionic branches to the pterygopalatine ganglion -> greater & lesser palatine nerves
posterior superior alveolar nerve
middle superior alveolar nerve
anterior superior alveolar nerve
infraorbital nerve
7
Q

What 6 branches arise from V3?

A

meningeal branch of the mandibular nerve
auriculotemporal nerve
buccal nerve
lingual nerve
muscular branches of the mandibular nerve (deep temporal muscles, masseter, pterygoids, tensor tympani, tensor veli palatini)
inferior alveolar nerve (and mental nerve)

8
Q

What types of nerve fibers are found in V1?

A

entirely somatic sensory

9
Q

What types of nerve fibers are found in V2?

A

entirely somatic sensory

10
Q

What types of nerve fibers are found in V3?

A

contains BOTH somatic sensory and branchial motor fibers

11
Q

What nerve subserves the dura mater of the tentorial cerebelli?

A

tentorial nerve of ophthalmic nerve V1

12
Q

What nerve subserves the eyeball and structures within the eye?

A

nasociliary nerve of ophthalmic nerve V1

13
Q

What nerves subserve the ethmoidal aircells and sphenoid sinus?

A

anterior and posterior ethmoidal nerves of nasociliary nerve of ophthalmic nerve V1

14
Q

What nerve subserves the skin over the nasion?

A

infratrochlear nerve of ophthalmic nerve V1

15
Q

What nerve subserves the skin of the forehead?

A

frontal nerve of ophthalmic nerve V1

16
Q

What nerve subserves a small patch of skin superior and lateral to the eye?

A

lacrimal nerve of ophthalmic nerve V1

17
Q

What nerve subserves the dura mater of medial portions of the anterior and middle cranial fossae?

A

meningeal branch of the maxillary nerve V2

18
Q

What nerve subserves the skin overlying the SUPERIOR zygoma?

A

zygomaticotemporal nerve of the zygomatic nerve

19
Q

What nerve subserves the skin overlying the INFERIOR zygoma?

A

zygomaticofacial nerve of the zygomatic nerve of the maxillary nerve V2

20
Q

What nerve subserves the oral mucosa of the HARD palate on the roof of the mouth?

A

greater palatine nerve of the ganglionic branches to the pterygopalatine ganglion of the maxillary nerve V2

21
Q

What nerve subserves the oral mucosa of the SOFT palate on the roof of the mouth?

A

lesser palatine nerve of the ganglionic branches to the pterygopalatine ganglion of the maxillary nerve V2

22
Q

What nerve subserves the nasal mucosa of the nasal septum?

A

nasopalatine nerve of the ganglionic branches to the pterygopalatine ganglion

23
Q

What nerve subserves the nasal mucosa of the middle and superior nasal conchae?

A

posterior superior lateral nasal branch of the maxillary nerve V2

24
Q

What nerves subserve the nasal mucosa of the maxillary sinus and the upper teeth?

A

posterior superior alveolar nerve
middle superior alveolar nerve
anterior superior alveolar nerve
all of the maxillary nerve V2

25
Q

What nerve subserves the skin on the lateral portions of the nose and anterior portions of the face from the lower eyelid inferior to the upper lip?

A

infraorbital nerve of the maxillary nerve V2

26
Q

What nerve subserves the dura mater of the lateral portions of the middle cranial fossa?

A

meningeal branch of the mandibular nerve V3

27
Q

What nerve subserves the lateral portions of the head, just anterior to the external auditory meatus?

A

auriculotemporal nerve of mandibular nerve V3

28
Q

What nerve subserves BOTH the inner and outer walls of the cheek?

A

buccal nerve of the mandibular nerve V3

29
Q

What nerve subserves the floor of the oral cavity?

A

lingual nerve of the mandibular nerve V3

30
Q

What nerve innervates (branchial motor AND sensory) the masseter muscle?

A

nerve to the masseter muscle, a muscular branch of the mandibular nerve V3

31
Q

What nerve innervates (branchial motor AND sensory) the temporalis muscle?

A

deep temporal nerves, muscular branches of the mandibular nerve V3

32
Q

What nerve innervates (branchial motor AND sensory) the medial pterygoid muscle?

A

nerve to the medial pterygoid muscle, a muscular branch of the mandibular nerve V3

33
Q

What nerve innervates (branchial motor AND sensory) the lateral pterygoid muscle?

A

nerve to the lateral pterygoid muscle, a muscular branch of the mandibular nerve V3

34
Q

What nerve innervates (branchial motor AND sensory) the tensor veli palatini muscle?

A

nerve to the tensor veli palatini muscle, a muscular branch of the mandibular nerve V3

35
Q

What nerve innervates (branchial motor AND sensory) the tensor tympani muscle?

A

nerve to the tensor tympani muscle, a muscular branch of the mandibular nerve V3

36
Q

What nerve innervates (branchial motor AND sensory) the mylohyoid muscle?

A

nerve to the mylohyoid muscle, from the inferior alveolar nerve of the mandibular nerve V3

37
Q

What nerve innervates (branchial motor AND sensory) the anterior belly of the digastric muscle?

A

nerve to the anterior belly of the digastric muscle, from the inferior alveolar nerve of the mandibular nerve V3

38
Q

What nerve subserves the roots of the inferior teeth and skin on the chin and superior to the lower lip?

A

the continuation of the inferior alveolar nerve of the mandibular nerve V3