Veterinary Medical Terminology - Chapter 14: Seeing and Hearing

These flashcards cover key terms and concepts related to the ocular and auditory systems as presented in Chapter 14, focusing on veterinary medical terminology.

ocular system

The system responsible for vision.

opt/i, opt/o, optic/o, ocul/o, ophthalm/o

Combining forms for the eye or sight.

accessory structures of the eye

Includes orbit, eye muscles, eyelids (palpebrae), eyelashes, conjunctiva, lacrimal apparatus, and tear ducts.

palpebrae

Another term for eyelids.

belphar/o

Combining form for eyelid.

conjunctiv/o

Combining form for conjunctiva.

lacrim/o, dacry/o

Combining forms for tear ducts.

sclera

The outer layer of the eyeball.

scler/o

Combining form for sclera.

cornea

The transparent anterior portion of the eye.

corne/o

Combining form for cornea.

choroid

The middle layer of the eye consisting of blood vessels, iris, pupil, lens, and ciliary body.

choroid/o

Combining form for choroid.

retina

The inner layer of the eye that receives images.

retin/o

Combining form for retina.

anterior segment

Part of the eye that contains aqueous humor.

aqueous humor

Fluid found in the anterior segment of the eye.

vitreous chamber

Part of the eye that contains vitreous humor.

vision

Occurs when light rays enter the eye and are focused on the retina.

optic nerve

Transmits images from the retina to the brain.

accommodation

Adjustment for distance in vision.

refraction

The focusing of light rays.

convergence

Maintenance of binocular vision.

acuity

Sharpness of vision.

auditory system

The system responsible for sound and maintaining balance.

audit/o, aud/i, ot/o

Combining forms for ear.

acoust/o, acous/o

Combining forms for sound or hearing.

pinna

External ear structure that catches and transmits sound waves.

pinn/i

Combining form for pinna.

external auditory canal

Tube that transmits sound from the pinna to the tympanic membrane.

tympanic membrane

Also known as the eardrum; transmits sound waves to the ossicles.

tympan/o, myring/o

Combining forms for eardrum.

Eustachian tube

Equalizes air and middle ear pressure.

bony labyrinth

Structure of the inner ear involved in balance and hearing.

semicircular canals

Three canals in the inner ear that regulate equilibrium.

cochlea

The organ of hearing in the inner ear.

organ of Corti

Structure in the inner ear that initiates a nerve impulse in response to sound.