Brainscape's Knowledge GenomeTM

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


See full index

Anatomy 4 > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

All autnomic ganglia in the head are ____

A

parasympathetic

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

Preganglionic parasympathetic fibers reach their target ganglia via branches of what cranial nerves?

A

III (oculomotor)
VII (facial)
IX (glossopharyngeal)

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

Postganglionic parasympathetic fibers reach their end organs by hitchiking along branches of what cranial nerve?

A

CRANIAL NERVE V

III –> V1
VII –> V2 & V3
IX –> V3

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

Preganglionic sympathetic fibers arise from ___ levels

A

T1 - T4

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

Postganglionic sympathetic fibers arise from the _____ and reach their target end organs via branches of the ___

A

superior cervical ganglion;

internal and external carotid arteries

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

The pharyngeal plexus is formed by what 3 nerve branches?

A

1) Vagus
2) Glossopharyngeal
3) postganglionic sympathetic fibers from superior cervical ganglion

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

Motor fibers in the pharyngeal plexus are derived from what?

A

Cranial root of CN XI and innervate all pharynx mm except stylopharyngeus and tensor vali by CN X

This is CN XI via X

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

Sensory fibers of pharyngeal plexus are derived from

A

CN IX and supply mucosa

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

Sympathetic innervation for sphincter pupillae and ciliary m. hitch hike with what?

A

The Nasociliary Nerve (V1) .. The nerve is the long ciliary nerve

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

The superior division of CN III supplies which muscles? The inferior division?

A

Superior : superior rectus, levator palpebrae superioris

Inferior : medial rectus, inferior rectus, inferior oblique

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

CN III Preganglionic parasympathetic fibers travel in the _____ division and pass into the ____ ganglion. postganglionic sympathetic fibers travel via the ______ or the ______ branch of V1 and into the ____ nerve.

A 
Inferior division 
Ciliary ganglion
Short ciliary nerve
Nasociliary nerve
Long ciliary nerve
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The CN III parasympathetic fibers supply what?

The CN III sympathetic fibers supply what?

A

Parasympathetic supply sphincter pupillae and ciliary mm, constrict the pupil.

Sympathetic supply vessels and dilator pupillae, dilate the pupil

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

How do CN III sensory fibers reach the eye?

A

The Nasociliary branch of V1.

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

A lesion of CN IV will leave the individual unable to turn the eye ___?

A

Down and Out (down and laterally)

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

CN IV travels under what?

A

The free edge of the tentorium cerebelli

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

What are the divisions of V1?

A

Nasociliary
Frontal
Lacrimal

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

What supplies the cornea?

A

V1

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

What does the lacrimal nerve supply?

A

(V1)

lacrimal gland
conjunctiva
skin of the upper eyelid

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

The frontal nerve supplies what?

A

eyelid, conjunctiva, skin of forehead

DIVIDES INTO SUPRATROCHLEAR AND SUPRAORBITAL

20
Q

What does the nasociliary nerve supply?

A

Nasal mucosa
Ethmoidal sinuses
Sphenoid sinuses

21
Q

The nasociliary nerve communicates with the ______ ganglion, passing _______ fibers to the _____ nerve.

A

Ciliary ganglion;
postganglionic sympathetic fibers
Short ciliary nerve

(this allows symp & parasymp to go to ciliary body & iris)

22
Q

V2 brings sensory to what 4 things? Parasympathetic to what?

A

Sensory: Maxilla, Upper teeth, Hard palate, Soft palate

Parasympathetic: lacrimal gland

23
Q

Within the pterygopalatine fossa, what hangs from V2? What synapses here? How do they get there?

A

The pterygopalatine ganglion;

Preganglionic parasympathetic fibers from CN VII (Facial) synapse here, traveling in the GREAT petrosal nerve. It fuses with postganglionic sympathetic fibers (from the DEEP petrosal nerve) to form the nerve of pterygoid canal.

24
Q

How does autonomoic innervation reach the lacrimal gland?

A

The zygomatic nerve of V2

Parasympathetic cause secretion
Sympathetic (from superior cervical ganglion) turn off secretions

25
Q

Superior alveolar nerves come from where?

A

V2

26
Q

What do motor branches of V3 supply as soon as it enters infratemporal fossa?

A

Tensor Palati
Medial Pterygoid
Tensor tympani

27
Q

The anterior division of V3 gives rise to what nerves?

A

Buccal nerve (mucous membrane of cheek)
Temporalis
Masseter
Lateral ptyergoid

28
Q

The posterior division of V3 branches are what?

A

Nerve to Mylohyoid
Auriculotemporal
Lingual w/ chorda tympani
Inferior alveolar

29
Q

Wha does the auriculotemporal nerve supply?

A

External Ear
Parotid gland
Superficial temporal regions

Postganglionic parasympathetic fibers from Otic ganglion reach parotid gland via this nerve. (CN IX)

30
Q

The lingual nerve supplies what? What is suspended from it? What does this provide?

A

Sensory innervation to anterior 2/3 of tongue, floor of mouth, gums

Submandibular ganglion hangs off, provides postganglionic parasympathetic (from chorda tympani) to submandibular and sublingual glands

31
Q

The inferior alveolar nerve supplies what?

A

Sensory to the lower gums and teeth

32
Q

What does the motor root of CN VII innervate?

A

Mm of facial expression
Stapedius
Stylohyoid
Posterior belly of digrastic

33
Q

The sensory root of CN VII arise from what? What do they carry?

A

The genticulate ganglion, carrying taste via chorda tympani of V3

34
Q

Within the temporal bone, the facial nerve gives off _______. It merges with the _________ nerve to form _________. The facial portion carries _____ fibers to the _______ ganglion that eventually innervates what?

A 
Greater petrosal nerve
Deep petrosal nerve
Nerve of pterygoid canal 
Preganglionic parasympathetic 
Pterygopalatine ganglion
Lacrimal gland
35
Q

The facial nerve supplies parasympathetic to what?

A

Lacrimal gland
Submandibular gland
Sublingual gland

36
Q

Sympathetic activity does what to salivary glands?

A

Reduces glandular blood flow so decreases salivary secretions, results in enzyme rich saliva

37
Q

How does the vestibulococlear nerve terminate?

A

Vestibular nerve

Cochlear nerve

38
Q

CN IX carries parasympathetic fibers to what? What do they innervate and how do they get there?

A

The otic ganglion , supplies the parotid gland to secrete. They are carried by the lesser petrosal nerve

39
Q

CN IX motor fibers innervate what?

A

Stylopharyngeus muscle

40
Q

CN IX carries sensory to what?

A 
Posterior 1/3 tongue 
Tonsils
Soft palate
Sides of pharynx 
Carotid sinus
Carotid body
External Ear
Middle Ear
41
Q

CN X gives motor to what?

A

Larynx
Pharynx (XI via X)
Soft Palate (not tensor palati) (XI via X)
Upper 2/3 esophagus

42
Q

CN X gives sensation to what?

A 
Larynx
Trachea
Bronchi
Heart
Esophagus
Digestive tract
Auricle
External acoustic meatus
43
Q

CN X gives taste to what?

A

Epiglottis

Palate

44
Q

Superior laryngeal nerve comes from where? It divides into what and supplies what?

A

CN X
internal laryngeal - sensory to larynx above vocal folds
external laryngeal - motor to cricothyroid

45
Q

What supplies motor to laryngeal muscles?

A

Recurrent laryngeal nerve (off of X)

EXCEPT CRICOTHYROID (external laryngeal)

It also supplies sensory to larynx below vocal folds

Anatomy 4 (8 decks)

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