Eye and Ear and Chemoreception

Question 1

Sclera

Answer 1

tough outer layer

Question 2

Cornea

Answer 2

front of sclera, transparent
light enters the eye and is bent through cornea

Question 3

Astigmatism

Answer 3

unequal curvature of cornea

Question 4

Choroid

Answer 4

middle layer
w/ blood vessels to nourish the eye

Question 5

ciliary body

Answer 5

muscle attached to lens for focusing

Question 6

Iris

Answer 6

pigmented muscle that controls amount of light entering the eye

Question 7

Retina

Answer 7

inner layer

Question 8

Ganglion layer

Answer 8

of retina- forms optic nerve that exits the back of the eye

Question 9

Optic disc/blind spot

Answer 9

back of eye where no photoreceptors, so no vision

Question 10

Photoreceptor layer

Answer 10

of retina with rods (peripheral, night vision) and cones (colour, near center)

Question 11

Fovea centralis

Answer 11

area of most accute vision

Question 12

Pupil

Answer 12

opening in front of eye where light comes in from

Question 13

Lens

Answer 13

focuses light on retina

Question 14

Aqueous humour

Answer 14

maintains cornea shape

Question 15

Vitreous humour

Answer 15

maintains eyeball shape

Question 16

Path of light through eye

Answer 16

cornea to pupil to lens to retina to optic nerve to brain (occipital lobe)

Question 17

Myopia

Answer 17

nearsightedness
elongated eyeball

Question 18

Hyperopia

Answer 18

farsightedness
shortened eyeball

Question 19

Colourblindness

Answer 19

when people lack cones for specific colours

Question 20

Pinna

Answer 20

outside part of ear

Question 21

auditory canal

Answer 21

tube leading to ear drum

Question 22

Tympanum

Answer 22

ear drum, sound turn to vibration

Question 23

ossicles

Answer 23

three bones that amplify vibraion

Question 24

oval window

Answer 24

when vibrations get concentrated here, pressure changes occur within the inner ear

Question 25

organ of corti

Answer 25

in the cochlea, generates action potential when hair cells are stimulated

Question 26

cochlea

Answer 26

seashell shaped thing

Question 27

auditory nerve

Answer 27

sends signals to temporal lobe

Question 28

semicircular canals

Answer 28

maintain balance

Question 29

Eustachean tube

Answer 29

connects to throat allows air pressure to equalize

Question 30

the 5 types of taste receptors

Answer 30

sour sweet salty bitter umami

Question 31

where does sensory info of smell go to in the brain

Answer 31

olfactory bulb