MAT 112 (Wednesday) Quiz 7

What happens when the ciliary muscle contracts?

The lens bulges for close vision.

Which term means record of hearing?

audiogram

Which of the following diagnostic procedures is a test of hearing ability?

audiometry

A combining form that means ear is

aur/o

pupil

central opening in the eye

Which of the following helps prevent foreign substances from reaching the eardrum?

cerumen

What stimulates the receptors that determine taste?

chemicals in food

Which layer of the eye is responsible for supplying blood to the eye?

choroid

The combining form that means cochlea is

cochle/o

Which of the following is NOT one of the ossicles?

cochlea

iris

colored part of the eye

Which of the following structures are the sensory receptor cells that see color?

cones

eustachian tube

connects the middle ear with the throat

semicircular canals

contains the sense organs for dynamic equilibrium

vestibule

contains the sense organs for static equilibrium

A combining form that means cornea is

corne/o

The anterior portion of the sclera is the ________

cornea

A combining form that means tears is

dacry/o

The combining form that means double is

dipl/o

Which term means double vision?

diplopia

malleus

ear ossicle nicknamed the hammer

stapes

ear ossicle nicknamed the stirrup

Which of the following equalizes the pressure between the outside and the middle ear?

eustachian tube

Hyperopia means nearsighted.

false

Otitis media is also called swimmer's ear.

false

The retina is the middle layer of the eyeball.

false

Tinnitus is a term meaning dizziness.

false

What region of the retina produces the sharpest image?

fovea centralis

The combining form that means gray is

glauc/o

Where are thermoreceptors located?

immediately under the skin

retina

inner layer of the eye that contains rods and cones

A medical term that means pertaining to tears is

lacrimal

Which of the following structures focuses incoming light rays onto the retina?

lens

Where are thermoreceptors most numerous?

lips

external ear

located between the auricle and tympanic membrane

The receptors for hearing are what kind of receptors?

mechanoreceptors

The ossicles are located in which cavity of the ear?

middle

conjunctiva

mucous membrane that lines the eyelid and covers the front of the eye except for the cornea

A combining form that means eardrum (tympanic membrane) is

myring/o

Which term means cutting into the eardrum (tympanic membrane)?

myringotomy

The combining form that means night is

nyctal/o

Which term means instrument to view inside the eye?

ophthalmoscope

Which of the following diagnostic procedures examines the interior of the eye?

ophthalmoscopy

What is the name of the white spot in the eye where the optic nerve leaves the eye (also called the blind spot)?

optic disk

A medical term that means ear pain is

otalgia

Which of the following pathological conditions is an ear infection commonly seen in children?

otitis media

A medical term that means pus discharge from the ear is

otopyorrhea

The combining form that means lens is

phac/o

choroid

pigmented vascular middle layer of the eye

The combining form that means old age is

presby/o

Which of the following terms refers to the normal loss of hearing associated with aging?

presbycusis

All but one of the following are functions of tears. Which is incorrect?

prevent foreign objects from entering the eye

lacrimal gland

produces tears

The sense of position or orientation is known as ________.

proprioception

Which of the following is NOT a taste sensation?

pungent

The combining form that means pupil is

pupill/o

The bending of light rays so that they can be focused on the retina is known as _______.

refraction

Which layer of the eye contains the sensory receptors for sight?

retina

Which of the following allows the eye to adapt to dim light?

rhodopsin

Which of the following structures are the sensory receptor cells active in dim light?

rods

The combining form that means sclera is

scler/o

A decreased sensitivity to a continued stimulus is known as _________.

sensory adaptation

What type of senses have receptors that are localized in a particular area?

special senses

cochlea

spiral structure in the inner ear that functions in hearing

organ of Corti

structure in the cochlea that houses the sound receptors

eyelashes

traps foreign particles and prevents them from entering the eye

Another term for labyrinthitis is inner ear infection.

true

Audiometry is a test of hearing ability.

true

The aqueous humor is a watery substance in the front region of the eyeball.

true

The ear is responsible for two senses: hearing and balance.

true

The pupil is responsible for admitting the correct amount of light into the eyeball.

true

Which of the following terms refers to dizziness?

vertigo

middle ear

begins at the tympanic membrane and ends at the oval and round window

Which term means surgical repair of the eyelid?

blepharoplasty

auricle

collects sounds waves and directs them toward the auditory meatus

eyelids

helps keep foreign objects from entering the eye

The combining form that means retina is

retin/o

anterior cavity

space between the cornea and lens

The auricle is also called the pinna.

true

sclera

white part of the eye

external auditory canal

S-shaped tube that extends from the auricle to the tympanic membrane

incus

ear ossicle nicknamed the anvil

What area of the brain interprets smell sensations?

olfactory cortex

What are the organs of taste?

taste buds

The sclera is the white of the eye.

true

The tympanic membrane divides the middle ear from the outer ear.

true

All of the following are examples of general senses except ________.

vision

All but one of the following are characteristics of cones. Which is incorrect?

are much more numerous than rods

A combining form that means hearing is

audi/o, acous/o

The ________ connects the nasopharynx and the middle ear.

auditory tube

The combining form that means eyelid is

blephar/o

Cerumen is produced by oil glands in the middle ear.

false

A combining form that means iris is

ir/o

eyebrows

keeps perspiration out of the eye

The combining form that means light is

phot/o

posterior cavity

the space between the lens and retina

Which of the following terms refers to ringing in the ears?

tinnitus

What stimulates a nociceptor?

tissue damage

A suffix that means vision condition is

-opia

What is the range of frequencies for normal speech?

300-4,000 vibrations per second