lecture exam 1 (packet 15) part I Flashcards

Protects and shapes the eyeball; provides a sturdy anchoring site for extrinsic eye muscle?

blood vessels supply nutrition to all eye layers

contains ony cones;provides detail color vision

lacks photoreceptors; were optic nerve exits the eye

consist of a pigment layer and a neural layer

acts as a reflexively activateddiaphragm to vay pupil size

the only tissue in the body that can be transplanted from one person to another with little or no rejection

controls lens shape

holds the retina firmly against the pigmented layer

fluid blockages cause glaucoma

the senory layer of the eye

the structure most responsible for focusing light rays that enter the eye

helps maintain the intraocular pressure; located in the anterior part of the eye

area of greatest visual acuity

another waor for earstones

connects the middle ear with the nasopharynx

contains utricle and saccule

detects linear acceleration

a condition that can result from a defictioncy of vitamine A

a condition of defness that mat result from otosclerosis

an inflamation of the lining of the middle ear

a condition often leading to blindness due to increased intraocular pressure

hair cells receptive changes in dynamic equilibrium are found in this structure

gustatory cells are found in this structure

hair cells receptive to changes in static equilibrium are found in this structure

the receptors of olfaction are found in this structure

houses the spiral organ (of corti)

the receptor organ for hearing

the central part of the bony layrinth

a membrane that transmits sound vibartions to the auditory ossicles

loss of hearing resulting from prolonged exposure to high-intensity sounds

can result from the fusion of the auditory ossicles

a possible side effect of medicationssuch as aspirin

one of the common results of otitis media

can result from impacted cerumen

what is the main function of the rodsin the eye

what structure regulates the amount of light passing to the visual receptors of the eye

receptors for hearing are located in the

which of the following types of neurons are replaced throughout adult life

the oil component found in tears is produced by the

the receptor for static equilibrium is the

farsightedness is moe properly called

seventy percent of all receptors are located in the

which of the following structures is NOT part of the external ear

nerve fibers from the medial aspect of each eye

why can corneas be transplanted with out tissue rection,unlike other tissues

the oval window is connected directly to which passage way

there are three layer of neurons in the retina ,the axons of which of these neurons layers form the optic nerve

the first way staytion in the visual pathway from the eye,after there has been partial cross over of the fibers in the optic chiasma,is the

as sound levels increase in the increase in the spiral organ (of corti)

which of the following is true about gustatory recetors

tastes buds are not found

select the correct statement about olfaction

what prevents the eyelids from sticking together when the eyes close

which of the following tase sensations is incorrectly matched to the chemicals that produce it
a.sour-acids
b.salty-medal ions
c.bitter-alkaloids
d.umani-amino acidsglutamate and lysine

u.s. employees must wear hearing protection at ____________dB or above

what is a modiolus?

which statement od malnutrition-induced night blindness is most accurate
a.the most common cause is vitamine D deficiency
b.vitamine supplements can reversedenerative changes
c.visual pigment content is reduced in both rods and cones
d.the impaired vision is caused by reduced cone function

dark adaptation

conscious perception of vision problably reflects activity in the

in the visual pathways of the brain,the optic radiations project to the

visual imputs to the _______ serve to synchronize biorhythms with natural light and dark.

information from balance receptors goes directlyto the

motion sickness seems to

in the uterus

most newborns

the blind spot of the eye is where

the first vestiges of the eye in the embryo are called

which pairing of terms is INCORRECTLY related
frequency-loudness
quality-frequency number
amplitude-sound intensity
frequency-wavelength number

olfactory cells and taste buds are normally stimulated by

which of the following could NOT be seen as one looks into the eye with an ophthalmoscope

the cells of the retina in which action potentials are generated are the

during dark adaptation

tinnitis, vertigo and gradual hearing loss typify the disorder called

which of the following is NOT a characteristic of olfactory receptor cells
a.they are ciliated
b.they are unipolar nuerons
c.they are chemoreceptors
d.they have a short life span of about 60 days

an essential part of the maculae involved in static equilibrium ia (are) the

the tarsal plate of the eyelid

it is true that photoreceptors

christae respond to angular

the eye muscle that elevates and turns the eye laterally is the

the receptor membranesof gustatory cells are

light passes through the following structures in what order

damage to the media rectmuscles would problably effect

visible light fits between

ceruminous glands are

the boundery of the retina is called the

the synapse of the olfactory nerves with the mitral cells is called

the rocks found in ones head (calcium carbonate crystals) are called

the middle ear ossicle is the

the _________ are in the visual pathway amd mediate the pupillary light reflexes

the oval window touches the stapes and the

the vestibulocochler nerve first synapses with the_______ in the medulla

the apex of the ear hears sounds in the range of

in the optic _______ the visual fields of the axons are all ipsilateral