Unit 2 Part 2 Review Flashcards
accommodation
The ability to focus on objects at different distances.
auditory ossicles
The three small bones of the middle ear.
BAER
(brainstem auditory evoked response) A hearing test.
bolting
Swallowing food in large chunks without chewing.
brachycephalic
A short-nosed skull structure.
ch’i
Known as the energy of the body.
choroid
Layer of blood vessels nourishing the retina in the eye.
cilia
Hairlike filaments extending from olfactory cells into the nasal cavity.
ciliary body
Structure in the eye connecting the iris to the sclera.
cochlea
Snail-shaped structure of the ear that converts sound vibrations to nerve impulses.
cones
Photoreceptors responsible for seeing color.
cornea
The transparent covering at the front of the eye.
cropping
Surgical alteration of the dog’s ears.
dermis
Deeper layer of skin containing the hair follicles and glands.
dolicocephalic
Long-nosed skull structure.
ear flap
Outer visible portion of the ear that’s also called the leather or pinna.
ectropion
Sagging outward of the eyelid.
entropion
Rolling in of the eyelid, bringing the eyelashes in contact with the eyeball.
epidermis
Outer layer of skin.
flea-bite dermatitis
Skin irritation caused by reaction to flea bites.
flicker fusion
The point at which flickering light, such as from a television, appears to be constant.
fly-bite dermatitis
Skin problem resulting from fly bites to the tips of the ears.
fovea
Area of the retina in humans with a high concentration of photoreceptors.
ganglion cells (ganglia)
Cells that transmit information from the photoreceptors to the brain.
goblet cells
Cells within the mucous membrane of the nose that produce a dark brownish fluid to keep the nasal cavity moist.
guard hairs
Thick outer hairs of the haircoat.
haw
Third eyelid of the dog.
hematoma
Pool of blood caused by a rupture of a blood vessel.
hertz
Measurement of sound, in cycles per second.
iris
Muscle that regulates the amount of light entering the eye.
lick granuloma
Skin irritation resulting from the dog’s chewing and licking.
melanins
Pigments providing color to hair.
nasal plane
The visible exterior hairless part of the nose.
nuclear sclerosis
Aging of the lens of the eye.
olfactory lobe
Structure within the brain dedicated to processing scent
otitis
Inflammation of the ear.
progressive retinal atrophy (PRA)
Hereditary disorder of the retina in which the light-sensing cells die.
retina
Layer of the eye holding the light-sensing rods and cones.
rods
Photoreceptors responsible for seeing light.
sclera
The outer layer of the eye.
sebaceous glands
Glands within the skin which secrete oils to help keep the haircoat waterproof.
semicircular canals
Small tubes within the ear responsible for balance.
sinuses
Hollows in the bones of the head.
social facilitation
The tendency of canines to live, hunt, eat, and peform other activities in groups.
subcutis
Deepest layer of skin.
tapetum lucidum
Reflective layer at the back of the eye.
turbinates
Bony structures within the nasal cavity.
undercoat
Softer woollier hairs lying under the guard hairs.
vibrissae
Whiskers, specialized to serve as sensors.
visual perspective
The dog’s point of view.
visual streak
Oval section of the dog’s retina where photoreceptors are concentrated.
vomeronasal organ
Structure in the floor of the dog’s nose responsible for reacting to sex pheromones and for “smelling” underwater.
