Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy > CN V (Trigeminal Nerve) > Flashcards

CN V (Trigeminal Nerve) Flashcards

1
Q

The caudal part of the brain is referred to as the brainstem and includes three parts. What are they?

A

medulla oblongata, pons, and midbrain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A ___ is a cluster of functionally-related neuronal cell bodies in the CNS

A

nucleus

note: Trigeminal nerve is linked to four

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

This trigeminal nerve nucleus is located slightly lateral to the 3rd ventricle in the midbrain

A

mesencephalic nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

This trigeminal nerve nucleus is located slightly lateral to the 3rd ventricle in the pons

A

principle sensory nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

This trigeminal nerve nucleus is located slightly lateral to the 4th ventricle in the medulla oblongata

A

spinal nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The caudal end of the spinal nucleus is continued into the spinal cord as the _____ tract

A

spinotrigeminal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Immediately medial to the principle sensory nucleus of the trigeminal nerve is the much smaller _____ nucleus of the trigeminal nerve

A

motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The trigeminal nerve extends from the lateral surface of the pons as a filamentous ____ ____ which connects to the medial surface of the trigeminal ganglion

A

sensory root

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

On the inferior surface of the filamentous sensory stalk is the much smaller _____ root

A

motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The motor root of the trigeminal nerve courses parallel to, and merges with, the ____ branch

A

mandibular (V3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The roots of the trigeminal nerve, the trigeminal ganglion, and the proximal ends of the three trigeminal branches are all enclosed within a dural evagination termed the ____ ____

A

trigeminal cave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The two layers of dura matter which form the trigeminal cave are expansions form the ____ ____

A

tentorium cerebelli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The trigeminal cave abuts the caudal surface of the venous expansion termed the ____ sinus

A

cavernous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The two branches of the trigeminal nerve that course through the cavernous sinus are?

A

ophthalmic (V1) and maxillary (V2)

note: within the sinus, these two branches are inferior to oculomotor (CN III) and trochlear (CN IV) nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

All three branches of the trigeminal give off sensory nerves to the meninges. The largest of these is the ____ ___ nerve which arises from the maxillary (V2) immediately before it enters the foramen rotundum

A

Middle Meningeal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The ____ nerve arises from the mandibular branch (V3) immediately after it passes through foramen ovale and then curls back around to enter the skull through the foramen spinosum

A

Meningeal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The ophthalmic (V1) is the smallest of the trigeminal branches. It almost immediatlely subdivides into three nerves. What are they?

A

Frontal, Lacrimal, and Nasociliary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The frontal and lacrimal nerves enter the orbit through the superior tip of the ____ ____ ____; the nasociliary nerve enters more inferiorly within the _____ ____ of the supraocular muscles

A

superior orbital fissure; tendinous ring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

This nerve is a branch from the frontal nerve and exits the orbit near the medial corner, extends superiorly along the forehead, and provides sensory to the scalp, frontal sinus, conjunctiva, and upper eyelid

A

supratrochlear nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

This nerve is a branch from the frontal nerve and exits the orbit through the supraorbital foramen, extends superiorly along the forehead and posteriorly near the vertex. It provides sensory to the scalp of the head and forehead and the upper eyelid.

A

supraorbital nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The lacrimal nerve courses along the superior surface of ____ ____ to reach the lateral corner of the orbit.

A

rectus lacrimal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The lacrimal nerve does not give off any named branches but does supply the ____ gland before exiting the lateral corner of the orbit where it gives sensory to the conjuctiva and upper eyelid

A

lacrimal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The lacrimal nerve includes sympathetic and parasympathetic axons and is connected to the _____ nerve of the maxillary branch (V2)

A

zygomaticotemporal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The nasociliary nerve is the most inferior of the three nerves, a portion courses along the superior surface of the ___ nerve, while the remainder courses near the medial border of the orbit between the ____ ____ and the superior oblique muscles

A

optic; medial rectus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

These nerves carry sensory information from the eyeball through the ciliary ganglion and into the nasociliary nerve

A

short ciliary nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

These nerves carry sensory information from the eyeball but bypass the ciliary ganglion

A

long ciliary nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

This nerve exits the orbit through the posterior ethmoidal foramen and provides sensory to the sphenoid sinus and the posterior ethmoid air cells

A

posterior ethmoid nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

The anterior ethmoid nerve gives sensory to the middle and anterior ethmoid air cells before it passes through the margin of the cribriform plate to enter the cranial cavity where it gives off a ____ branch. It then passes inferiorly through the _____ _____ to enter the nasal cavity where it gives sensory to the anterior portion of the nasal septum

A

meningeal; nasal slit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

This nerve is the nasociliary nerve distal to the branching of the anterior ethmoidal nerve.

A

infratrochlear nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

The infratrochlear nerve exits the orbit at the ___ corner and is sensory to the soft tissue at the corner of the orbit, the conjunctiva, and the upper eyelid

A

medial

31
Q

The maxillary (V2) exits the foramen rotundum as a single nerve, within the pterygopalatine fossa it gives rise to branches and communicates with the pterygopalatine ganglion, then divides into the ____ and ____ nerves

A

zygomatic and infraorbital

32
Q

The zygomatic and infraorbital nerves enter what?

A

inferior orbital fissure

33
Q

In regards to the maxillary nerve (V2), this nerve branches off distal to the pterygopalatine galngion, courses inferiorly over the tuberosity of the maxilla to enter the alveolar canal

A

posterior superior alveolar nerve

34
Q

The posterior superior alveolar nerve provides sensory to what?

A

upper premolars and molars

note: forms plexus with the anterior superior alveolar nerve

35
Q

In regards to the maxillary nerve (V2), this nerve exits near the lateral border of the inferior orbital fissure. Courses for a relatively short distance along the lateral margin of the orbit

A

zygomatic nerve

36
Q

The communicating branch of the zygomatic nerve courses superiorly to merge with the ____ nerve

A

lacrimal

37
Q

This branch of the maxillary nerve (V2) exits near the middle of the inferior orbital fissure, only courses in the orbit for a short distance then enters the infraorbital canal. It gives off one branch within the infraorbital canal then passes through the infraorbital foramen

A

infraorbital nerve

38
Q

This branch of the infraorbital nerve provides sensory to the upper incisors and canines, courses within the alveolar canal and forms a plexus with the posterior counterpart

A

anterior superior alveolar nerve

39
Q

This branch of the infraorbital nerve courses superiorly from the infraorbital foramen; gives sensory to the lower eyelid and conjunctiva

A

inferior palpebral nerve

40
Q

This branch of the infraorbital nerve courses medially from the infraorbital foramen and gives sensory to the septum and floor of the nasal cavity

A

lateral nasal nerve

41
Q

This branch of the infraorbital nerve courses inferiorly from the infraorbital foramen; gives sensory to the skin between the nose and upper lip

A

superior labial nerve

42
Q

This branch of the mandibular nerve (V3) is a muscular branch which supports the otic ganglion but has no synaptic connections there. It courses over the deep surface of the medial pterygoid and gives off named branches to the tensor tympani and the tensor veil palatini

A

nerve to medial pterygoid

43
Q

This branch of the mandibular nerve (V3) supplies muscular innervation to the lateral pterygoid

A

nerve to lateral pterygoid

44
Q

This branch of the mandibular nerve (V3) courses posterior to the tendon of temporalis and anterior to the TMJ. It crosses the mandible and the mandibular notch with the masseteric artery. It gives muscular innervation to the masseter.

A

masseteric nerve

45
Q

This branch of the mandibular nerve (V3) courses superior to the lateral pterygoid then radiates along the deep surface of the temporalis. It typically splits into anterior and posterior branches, but both the number and origin of the branches is highly variable. Muscular innervation to the temporalis.

A

Deep temporal nerve

46
Q

This branch of the mandibular nerve (V3) courses deep to the temporalis and master. Sensory to the cheek region, may also carry sensory impulses from the molars.

A

buccal nerve

47
Q

What three nerves are found in the posterior division of the mandibular nerve (V3)?

A

auriculotemporal, lingual, and inferior alveolar nerves

note: this is confusing but the posterior division is actually inferior, not posterior

48
Q

This branch from the posterior division of the mandibular nerve (V3) courses posteriorly with an inferior arch to course around the neck of the mandible - along this course it is pierced by the MMA, then passes between TMJ and the external auditory meatus before coursing superiorly along the head. Gives sensory to the temporal region, TMJ, auditory canal; autonomics to the parotid gland

A

auriculotemporal nerve

49
Q

This branch from the posterior division of the mandibular nerve (V3) courses inferior to the lateral pterygoid and medial to the inferior alveolar nerve, then between the medial pterygoid and the ramus of the mandible. Here it gives rise to two communicating branches connecting it to the submandibular ganglion. At the hypoglossus it bifurcates to form the smaller nerve to sublingual gland and larger sublingual nerve which is general sensory to the anterior 2/3 of the tongue

A

lingual nerve

50
Q

This branch from the posterior division of the mandibular nerve (V3) courses inferiorly along the posterior margin of the lateral pterygoid. Gives rise to a muscular branch, the nerve to mylohyoid, then passes through the mandibular foramen to enter the mandibular canal. Within the canal, it sends sensory branches to the lower molars and premolars. Anteriorly it bifurcates to form the incisive nerve and the mental nerve

A

inferior alveolar nerve

51
Q

The ciliary ganglion is located on the superior surface of the optic nerve. What are its inputs?

A

postsynaptic sympathetic axons: from superior cervical ganglion

presynaptic parasympathetic axons: from occulomotor nerve (CN III)

sensory fibers: from nasociliary nerve

52
Q

The ciliary ganglion is located on the superior surface of the optic nerve. What are its outputs?

A

short ciliary nerves

53
Q

What is the functional significance of the ciliary ganglion?

A

autonomics passing through the ciliary ganglion regulate both accommodation of the lens and pupillary aperture

54
Q

The pterygopalatine ganglion is located in the pterygopalatine fossa. What are its inputs?

A

postsynaptic sympathetic axons: from superior cervical ganglion

presynaptic parasympathetic axons: from greater petrosal nerve (from Facial nerve)

sensory fibers: from maxillary nerve (V2)

55
Q

The pterygopalatine ganglion is located in the pterygopalatine fossa. What are its outputs?

A 
posterior superior nasal nerve
posterior inferior nasal nerve
nasopalatine nerve
greater palatine nerve
lesser palatine nerve
orbital nerves
pharyngeal nerves
56
Q

This nerve gives sensory to the lateral wall of the nasal cavity including the inferior concha

A

posterior inferior nasal nerve

57
Q

this nerve gives sensory to the palatal mucosa around the upper incisors and canines

A

nasopaltine nerve

58
Q

This nerve gives sensory to the palatal mucosa and gingiva anteriorly as far as the first premolar

A

greater palatine nerve

59
Q

This nerve gives sensory to the mucosa of the soft palate

A

lesser palatine nerve

60
Q

This nerve gives sensory to the medial wall of the orbit

A

orbital nerve(s)

61
Q

These nerve gives sensory to the nasopharynx

A

pharyngeal nerve

62
Q

Autonomics passing through the pterygopalatine ganglion regulate _____

A

lacrimation

63
Q

The submandibular ganglion is located in the floor of the mouth, superior to the submandibular gland. What are its inputs?

A

postsynaptic sympathetic axons: from superior cervical ganglion

presynaptic parasympathetic axons: from chorda tympani

sensory fibers: from lingual nerve

64
Q

The submandibular ganglion is located in the floor of the mouth, superior to the submandibular gland. What are its outputs?

A

the outputs course in the lingual nerve

65
Q

Autonomics passing through the submandibular ganglion regulate what?

A

saliva expression in the sublingual and submandibular glands

66
Q

The otic ganglion is located on the medial surface of the mandibular nerve (V3) at the level of the divergence of the anterior division of the mandibular nerve. What are its inputs?

A

post synaptic sympathetic axons: from superior cervical ganglion

presynaptic parasympathetic axons: from glossopharyngeal nerve coursing in the lesser petrosal nerve

sensory and muscular axons: from medial pterygoid nerve and chorda tympani

67
Q

The otic ganglion is located on the medial surface of the mandibular nerve (V3) at the level of the divergence of the anterior division of the mandibular nerve. What are its outputs?

A

auriculotemporal nerve to the parotid gland

68
Q

Autonomics passing through the otic ganglion regulate what?

A

salivation at the parotid gland

69
Q

What is the function of the mesocephalic nucleus?

A

proprioception from muscles, teeth, TMJ

70
Q

What is the function of the principle nucleus

A

touch sensation from the head and face

71
Q

What is the function of the spinal nucleus?

A

tactile sensation from oral cavity, dental pain, pain and temp sensation from face

72
Q

What is the function of the motor nucleus?

A

muscular branches of mandibular nerve (V3)

73
Q

This is paralysis of the muscles of mastication (innervated by the anterior division of the mandibular nerve (V3))

A

trigeminal palsy

74
Q

This is described as one of the most painful medical conditions - causes suicidal depression. There is no effective treatment.

A

trigeminal neuralgia

Anatomy (44 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions