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Neuro I > Intro CN > Flashcards

Intro CN Flashcards

1
Q

What does GSA stand for

A

general somatic afferent

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2
Q

what are the types of GSAs

A

exteroceptive and proprioceptive

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3
Q

what are exteroceptive impulses

A

pain temperature touch from epithelium of ectodermal origin

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4
Q

what are proprioceptive impulses

A

sensory endings in body wall, tendons and joints

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5
Q

What does GVA stand for

A

general visceral afferent

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6
Q

what are general visceral afferents

A

fibers carrying sensory impulses like pain from viscera within body lined by epithelium of endodermal origin

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7
Q

Where are special afferent fibers found

A

in cranial nn

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8
Q

what are the 2 types of special afferents

A

special somatic afferent SSA

special visceral afferent SVA

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9
Q

what type of afferents carry vision, hearing and quilibrium

A

special somatic afferents

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10
Q

what type of afferents carry smell and taste

A

special visceral afferent

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11
Q

What does GSE stand for

A

general somatic efferent

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12
Q

what fibers are GSE

A

fibers with motor impulses to somatic (skeletal) muscle

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13
Q

what does GVE stand for

A

general visceral efferent

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14
Q

what fibers are GVE

A

autonomic fibers that inn smooth m of gut, vasculature and cardiac mm, and gibers for glandular secretion

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15
Q

what are the subdivisions of GVE

A

sympathetic and parasympathetic

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16
Q

what type of nerves have GVE

A

spinal and some cranial nn

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17
Q

What are the 2 types of special efferents

A

special visceral efferent SVE

special somatic efferent SSE

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18
Q

What nn are special visceral efferents

A

nn that inn skel m from visceral arch mesoderm like the mm of mastication, facial expressionm pharynx, palate and larynx

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19
Q

what type of nn fibers can reflexively influence sensory input to the ear

A

special somatic efferent SSE

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20
Q

What CN are PAN

A

III VII IX X

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21
Q

what CN carry special visceral efferents

A

V, VII IX X

22
Q

What CN carry special somatic efferents

A

VIII

23
Q

what nn carry somatic general efferents

A

CN III IV VI XI XII and all spinal nn

24
Q

What are the proprioceptive CN that are afferent somatic general sensory

A

CN V and all spinal nn

25
Q

what are the exteroceptive nn that are sensory afferent somatic

A

all spinal

V VII IX X

26
Q

what are the special somatic sensors afferent CN

A 
VIII(vestibular)-proprioceptive
II VIII(cochlear)- exteroceptive
27
Q

what are the sensory afferent visceral nn

A

all spinal

CN VII IX and X

28
Q

what are the special sensory visceral CN

A

smell is CN I

taste is CN VII IX X

29
Q

What is CN I and type of fibers and modality

A

olfactory, SVA, sensory

30
Q

What is CN II and type of fibers and modality

A

optic, SSA, sensory

31
Q

What is CN III and type of fibers and modality

A

oculomotor, GSE, GVE-parasympathetic, motor

32
Q

What is CN IV and type of fibers and modality

A

trochlear, GSE and motor

33
Q

What is CN V and type of fibers and modality

A

trigeminal, GSA and SVE, both

34
Q

What is CN VI and type of fibers and modality

A

abducens, GSE and motor

35
Q

What is CN VII and type of fibers and modality

A

Facial, SVE GSA SVA GVA GVE-P and both

36
Q

What is CN VIII and type of fibers and modality

A

acoustic vestibulocochlear, SSA SSE sensory

37
Q

What is CN IX and type of fibers and modality

A

glossopharyngeal SVE GSA SVA GVA GVE-P both

38
Q

What is CN X and type of fibers and modality

A

vagus, SVE GSA SVA GVA GVE-P both

39
Q

What is CN XI and type of fibers and modality

A

spinal accessory, GSE motor

40
Q

What is CN XII and type of fibers and modality

A

hypoglossal GSE motor

41
Q

why is olfactory or CN I Special visceral afferent

A

because assist body in preparation for eating, reflex salivation and increase gastric motility

42
Q

why is CN II optic special somatic afferent

A

afferent fibers of retina, primary receptor for sense of sight

43
Q

describe why CN III oculomotor is both GSE and GVE-P

A

general somatic efferent in its motor to extraoccular mm
general visceral efferent-PAN because PAN to intraocular m which change shape of lens for accommodation and pupillary constriction(ciliary ganglion)

44
Q

describe why CN IV trochlear is GSE

A

general somatic efferent because inn superior oblique of eye

45
Q

describe why CN V trigeminal is GSA and SVE

A

general somatic afferent because major sensory of head inn scalp and face, all conjunctiva, epithelium of nasal cavity, paranasal sinuses, oral cavity, skin of outer ear, external auditory meatus, cranial dura and proprioception to all skel m of head
special visceral efferent to motor skel m of pharyngeal arch origin, mm of mastication, mylohyoid, anteiror belly of digastric, tensor vali palatini and tensor tympani mm

46
Q

describe why CN VI abducens is GSE

A

general somatic efferent b/c inn lateral rectus

47
Q

describe why CN VII facial is SVE, GSA, SVA, GVA, GVE-P

A

SVE- motor to second pharyngeal arch origin mm of facial expression, stylohyoid, post belly digastric m and stapedius
GSA- sensory to external ear and external auditory meatus
SVA- taste ant 2/3 tongue chorda tympani
GVA- sensory uppermost pharynx
GVE-P- PAN to lacrimal gland, nasal, palatal, oral and pharyngeal mucous glands via greater petrosal n and pterygopalatine ganglion to submandibular and sublingual salivary glands via chorda tympani and submandibular ganglion

48
Q

describe why CN VIII vestibulocochlear is SSA and SSE

A

special somatic afferent because organ of corti related to sense of hearing
afferent from semicircular canals, utricle and saccule of internal ear relative to sense of equilibrium
special somatic efferent thru motor related to auditory input

49
Q

describe why CN IX glossopharyngeal is SVE, GSA, SVA, GVA, GVE-P

A

special visceral efferent- motor to skel m of pharyngeal arch origin, stylopharyngeus
general somatic afferent- sensory to portion of skin to external ear
special visceral afferent- taste from post 1/3 tongue
general visceral afferent- sensory to epithelium lining pharynx from base of skull to laryngeal adieus, middle ear internal tympanic membrane, tonsils, posterior third of tongue, parotid gland carotid sinus
GVE-P secretory fibers to parotid salivary gland via lesser petrosal nerve and otic ganglion

50
Q

describe why CN X vagus is SVE, GSA, SVA, GVA and GVE-P

A

SVE- motor to skel m or pharyngeal arches 4 and 6(superior, middle, inf pharyngeal constrictor, salpingopharyngeus, levator veli palatini, palatoglossus, palatopharyngeus, post lat cricoarytenoid, transverse and oblique arytenoid, thyroarytenoid and upper esophagus
GSA- cutaneous external ear, meatus, surface tympanic membrane and dura of post fossa
SVA- taste from epiglottic surface of tongue
GVA-sensory root of tongue, larynx respiratory system, heart gut tube and distal third transverse colon, capsule liver spleen kidneys and gonads
GVE-P mucous lglands in larynx, sm m in glands of gut tube to distal third transverse colon, cardiac m and respiratory system

51
Q

describe why CN XI spinal accessory is GSE

A

motor to SCM and trapezius

52
Q

describe why CN XII hypoglossal is GSE

A

motor to styloglossus, genioglossus, hyoglossus, intrinsic mm of tongue (longitudinal, vertical and transverse)

Neuro I (9 decks)

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