Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
60 Cards in this Set
- Front
- Back
|
Olfaction receptors location |
epithelium, superior nasal cavity |
|
|
Oderants |
stimulate olfactory receptors |
|
|
Low threshold rapid adaptation most powerful sense |
Olfactory receptors |
|
|
Gustation |
sense of taste |
|
|
gustory receptors |
located in taste buds and papillae |
|
|
Papillae |
small elevations is the throat, tongue, epiglottis |
|
|
primary tastes |
sour, sweet, bitter, salty and umami |
|
|
gustatory stimulants |
tastants |
|
|
taste with lowest threshold |
bitter-common poison taste |
|
|
conjuctiva |
lines inside of eyelids |
|
|
lacrimil apperatus |
produces tears |
|
|
fiberous tunic |
outer layer of eyeball |
|
|
Moves the eye |
extrinsic muscle |
|
|
sclera |
white of eye |
|
|
cornea |
transparent coat in front of eye |
|
|
vascular tunic |
middle layer of eye |
|
|
choroid |
highl vascular posterior part of eye |
|
|
ciliary body |
alters shape of lens |
|
|
iris |
colored part of eye |
|
|
Pupils decrease in size |
Parasympathetic response |
|
|
Pupils Dialate (bigger) |
Sympathetic response |
|
|
retina |
inner layer of eye image formation |
|
|
Photoreceptors |
in retina, converts light into nerve receptor potentials |
|
|
Rods |
see black, white, dim and gray |
|
|
Cones |
see blue , green and red |
|
|
Macula Lutea |
exact center behind retina has most cones |
|
|
Central Fovea |
small depression in Macula Lutea sight of BEST visual acuity |
|
|
Optic disk |
blind spot-no rods or cones here |
|
|
lens |
fine tunes light refractions, divides eye into posterior and anterior |
|
|
aqueous humor |
secreted constantly by ciliary body |
|
|
glaucoma |
high fluid pressure in eye |
|
|
vitreous body |
thick gel in the vitreous chamber that maintains shape of eye |
|
|
refraction of light rays |
bending light, occurs at cornea and again at back of eyes |
|
|
Accommodation |
increase the curvature by the lens allows to focus NEAR |
|
|
far vision |
seen through lens flattened by ciliary muscle |
|
|
COnvergence |
medial movement by both eyes |
|
|
Binocular vision |
creates 3d and depth perception |
|
|
myopia |
nearsightedness egg shaped eye focused in front of retina |
|
|
hypermetropia |
farsightedness round eyes focus BEHIND retina |
|
|
Astigmatism |
irregularities in cornea or lens |
|
|
presbyopia |
old eyes need reading glasses |
|
|
colorblind |
absence of cones |
|
|
nightblind |
absence of rods |
|
|
audiotory ossicles |
smallest bones in the body malleous incus stapes |
|
|
Oval window |
membrane that fits snugly against the stapes |
|
|
Round Window |
membrane that is between middle and inner ear, relieves inner ear pressure |
|
|
perilymph
|
fills outer layer of inner ear labyrinth |
|
|
endolymph |
fills inner layer of inner ear labyrinth |
|
|
vestible |
back side of oval window |
|
|
receptors for static equilibrium |
saccule and utricle and macula (SuM) |
|
|
receptors for Dynamic equilibrium |
Semicircle Canals calles ampulla and Crista |
|
|
Scala Vestible |
runs from oval window to end of spiral and filled with perilymph |
|
|
Scala Tympani |
end of spiral down to round window and filled with perilymph |
|
|
cohlear duct |
in the middle of the scalas and filled with endolymph |
|
|
Organ of Corti |
actual organ of hearing aka spiral organ filled with hair cells for auditory sensations |
|
|
High pitched noise |
receptors (stiff hairs) at base of cochlea need more energy to move |
|
|
Low pitched noise |
receptors (flexible hairs)at tip of cochlea less energy to move |
|
|
Volume |
loud noise causes hair to bend farther |
|
|
Static Equilibrium |
maintains stationary body position Stand still static |
|
|
Dynamic Equalibrium |
maintains body during sudden movement like Dynamic Dancing |
