PNS Flashcards by Keesha savage

Q

composed of the cranial nerves arising from the brain and spinal nerves

A

Peripheral nervous system

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Q

most anterior sensory nerve; transverses the formamina in the ethmodial cribriform plate

A

olefactory nerve I

senesory: smell

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Q

tip of the nerve

A

olfactory bulb

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Q

impluses pass through here to the cerebral cortex to be interperpeted

A

olfactory bulb

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Q

anterior portion leading to eye; passes through the opic canal

A

optic nerve II

sensory; sight

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Q

middle portion of the X

A

optic chiasm

where it comes together

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Q

posterior portion that leads posteriory to the thalumus

A

optic tract

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Q

motor: ciliary muscles, constricts pupil, extrinsic eye muscles except superior oblique and lateral rectus

A

oculomotor nerve III

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Q

motor:superior oblique muscle of the eye

A

trochlear nerve IV

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Q

largest cranial nerve

A

trigeminal nerve V

patricks armpit

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Q

innervates scalp and forehead region

A

ophthalmic division V1

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Q

through the foramen rotumdum to the upper jaw region

A

maxillary division V2

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Q

through the foramen ovale to the lower jaw region

A

mandibular division V3

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Q

motor: lateral rectus of eye

A

abducens nerve VI

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Q

sensory: taste (anterior 2/3 of tounge)

Moter: muscels of facial expression, secretion of saliva and tears

A

facial nerve VII

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Q

Sensory: hearing balance and posture

A

vestibulocochlear nerve VIII

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Q

sensory: taste (posterior 1/3 of tounge)
motor: smallowing and secretion of saliva

A

glossopharyngeal nerve IX

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Q

sensory and motor: 70% of the parasympathetic division of the ANS

A

Vagus nerve X

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Q

Motor: trapezius and sternoclediomastoid

A

accessory nerve XI

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Q

Motor: muscles of the tongue

A

hypoglossal nerve XII

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Q

group of nerves that supply the upper limbs

A

brachial plexus

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Q

Y nerve

A

Median nerve

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Q

A

ulnar nerve

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Q

A

radial nerve

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musculocutaneous nerve

lumbosacral plexus

anterior side

femoral nerve

posterior side

sciatic nerve

anterior side; branch of sciatic nerve

tibial nerve

posterior side; branches off from the sciatic nerve

common fibular (peroneal nerve)

tongue

lingual frenulum connects the tongue to the bottom of the mouth

papillae

fifiform papillae fills in all the rest of the space

fungiform papillae tastebuds

circumvallate papillae big ones at the back of the tongue

palpebrae eyelid

levator palpebrae superioris

lacrimal gland lateral side

exretory lacrimal ductules | (model only)

caruncle

lacrimal punctum tears drain

lacrimal canals | (model only)

lacrimal sac | (model only)

nasolacrimal duct | (model only)

tarsal glands | (model only)

superior oblique

trochlea | (model Only)

superior rectus

medial rectus

inferior rectus

inferior obique

lateral rectus

sclera whites of eyes

conjunctiva keeps things from getting outside to the inside of your head

covers anterior portion of eye

cornea

middel layer

choroid

ciliary body

ciliary zonules (suspensory ligament) (model only)

iris

ora serrata | (model only)

posterior to iris and pupils

lens

surrounded by iris

PUPIL

innermost layer of the wall of the eye

retina

macula lutea | (model Only)

fovea centralis

optic disc

optic nerve II

anterior chamber

posterior chamber

fulid that fills the anterior and posterior chambers, this fluid helps maintain intraocular pressure

aqueous humor

vitreous chamber

viscous fluid that fills the vitreous chamber of the eye, provides intraocular pressure

vitreous humor

consists of auricle and external autitory canal

external ear

auricle

external auditory (acoustic) canal

contains the auditory ossicles and associated structors within the tympanic cavity

middel ear

tympanic membrane | (transparent)

three small bones of the middel ear that reiceve vibrations from the tympanic memebrane and transmit them to the oval window

auditory ossicles

malleus 3 prongs

incus

stapes triangle

skeletal muscle that rubs along the auditory tube and inserts on the malleous

tensor tympani muscle

vestibular (oval) window

cochlear (round) window

auditory (eustachian) tube

composed of bony labyrinth cavity that houses the vestibule and cochlea

inner ear

vestibule

vestibular nerve

semicircular canals

cochlea

choclear nerve

scala vestibule vest goes on top

vestibular membrane

scala tympani panties go on the bottom

basilar membrane goes all the way across

fluid contained within the scala vestibuli anf the scala tympani of the cochlea

perilymph

cochlear duct

fluid contained in the cochlear duct

endolymph

spiral organ of corti

serve as sound receptors in the basilar membrane

cochlear hair cells

tectorial membrane half way through