Anatomy Exam 3 Part 6

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gustation

taste

olfaction

smell

the receptors in taste and small

chemoreceptors

furthest back papillae

vallate papillae

side papillae

foliate papillae

most anterior papillae

fungiform papillae

taste can be sensed with what cranial nerves

7 and 9

axons of olfactory sensory neurons gather into bundles called

filaments of the olfactory nerve

the filaments of the olfactory nerve enter the olfactory bulbs and synapse with

mitral cells

absence of the sense of smell

anosmia

distortion of smells or olfactory hallucination

uncinate fits

reddish elevation at the medial anthus

lacrimal caruncle

connective tissue within the eyelids

tarsal plates

modified sebaceous glands

tarsal glands

transparent mucous membrane

conjunctiva (palpebral or bulbar)

keep surface of the eye moist

lacrimal apparatus

produces lacrimal fluid

lacrimal gland

fluid empties into nasal cavity

lacrimal sac

origin of the four rectuc eye muscles

annular ring

SODO

superior oblique

IOUO

inferior oblique

posterior five-sixths of the tunic, white, opaque region

sclera

anterior one-sixth of the fibrous tunic

cornea

allows aqueous humor to drain

scleral venous sinus

vascular, darkly pigmented membrane, prevents scattering of light rays within the eye

choroid

thickened ring of tissue which encircles the lens

ciliary body

posterior surface of the ciliary body

ciliary processes

attached around entire circumference of the lens

ciliary zonule

visible colored part of the eye

iris

the round central opening of the iris

pupil

protective response of pupil constriction when a bright light is flashed in the eye

pupillary light reflex

sympathetic what muscle of the eye contracts

dilator pupillae

parasympathetic what muscle of the eye contracts

sphinctor pupillae

the deepest tunic

retina

what is the retina's two layers

pigmented and neural layer

single layer of melanocytes of retina

pigmented layer

sheet of nervous tissue in the retina

neural layer

rods and cones are

photoreceptors

contains mostly cones

macula lutae

contains only cones, region of highest visual acuity

fovea centralis

blind spot

optic disc

where the neural layer ends at the posterior margin of the ciliary body

ora serrata

blood is receives in the eye from the

choroid

the posterior chamber of eye is filled with

vitreous humor

the anterior chamber of eye is filled with

aqueous humor

chamber between the cornea and iris

anterior chamber

chamber between the iris and lens

posterior chamber

light bending structures are called

refractory media

curvature of the lens is adjustable

accommodation

the lens in sympathetic activation

flattens (for distant vision)

the lens in parasympathetic activation

bulges (for close vision)

eyeball is too long

nearsighted (myopic eye)

eyeball is too short

farsighted (hyperopic eye)

optic tract sends axons to

lateral geniculate nucleus of the thalamus

fibers of the what reach the primary visual cortex

optic radiation

loss of an eye results in loss of what vision

ipsilateral peripheral

blood vessels grow within the yes of premature infants causes hemorrhaging and blindness

retinopathy

contagious infection of the conjuctiva

trachoma

forms the boundary between the external and middle ear

tympanic mambrane

links the middle ear and pharynx

pharyngotympanic tube

hammer bone, attaches to the eardrum

malleus

anvil bone

incus

stirrup bone, vibrates against the oval window

stapes

the snail shell looking thing in the ear

cochlea

membranous labyrinth is filled with

endolymph

bony labyrinth is filled with

perilymph

where are the receptors for hearing

cochlear duct (scala media)

monitor the position of the head

macula

receptor cells of rotational acceleration

ampullary cupula

a mismatch of sensory input causing sickness

motion sickness

equilibrium is greatly disturbed

meniere syndrome

sound vibrations cannot be conducted to the inner ear

conduction deafness

results from damage to any part of the auditory pathway

sensorineural deafness

gradual loss of hearing with age

presbycusis

depth perception is present

6 months

image can be focused on the retina

3 months

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