senses

modality

the type of stimulus the brain interprets based on what message it received

nociceptors detect

pain, somatic and visceral

Chemoreceptors detect

body fluids, such as how much oxygen or calcium is in the blood. can also detect chemicals

Mechanoreceptors detect

the position of our joints and muscles, our tactile receptors and balance

our tongue has

chemoreceptors that help us taste

Another word for a gustatory cell is

a chemoreceptor cell

Our taste buds reside in pits and food must be ______ to reach it

disolved in liquid

The back of our tongue picks up

umami flavors

the tip of our tongue picks up

sweet flavors

chemoreceptors in our noses…

dissolve chemicals in vapors and to bind them

sclera

the white part of the eye

cornea

the transparent shield In front of our eye

lens

bends to shape and focus light. where cataracts form

choroid

posterior to retina. has capillaries

ciliary muscles

move the lens

iris

the colored part of the eye

pupil

the area we see out of

vitreous humor

gel fluid on the inside of our eye

aqueous humor

watery fluid in front of the lens of our eye

macula lutea

center of the retina, contains the fovea. highest density of cones. where we focus our eyes to see the best

rods

black and white photoreceptor

cones

color photoreceptor

Auricle (pinna)

outside of the ear we can see

External auditory meatus

outer canal of the ear

tympanic membrane

(ear drum) funnel shaped sheet. vibrates when sounds hit it.

In the tympanic cavity of the ear you have

the 3 auditory ossicle bones

MIS stands for

the malleus, incus and stapes bones

Eustachian tube

extends to the nasopharynx. where pressurization takes place

Cochlea

snail shaped chamber of inner ear

the ossicle bones…

vibrate the oval window of the cochlea causing waves in endolymph fluid in Scala tubes

the vibrations from the cochlea are receipted

at the CN VIII and back to the brain to be processed.

Basilar membrane

base of cochlear duct, contains hair cells

Tectorial membrane

attacked to wall of cochlear duct

sound waves that travel through Scala tubes..

cause the vibration of the basilar membrane and push hair cells, releasing neurotransmitters to neurons

Volume is caused by

how many hair cells were stimulated

Pitch is caused by

The region of the basilar membrane that vibrated within the cochlear duct

High frequency pitches are felt..

near the beginning of the cochlear duct

Semicircular canals

contain endolymph fluid, and help us keep our balance and orientation

Cupula

flexible gelatin striations with hairs inside of it connecting to a nerve. when you bend or move the hairs move and tell you what your body is doing/what position its in