Lab 7 - Start Prac 2 - Auditory & Visual Systems

Question 0

parts of middle ear

Answer 0

ossicles, tympanic membrane

Question 1

parts of outer ear

Answer 1

pinna, external auditory meatus

Question 2

inner ear contains blank

Answer 2

cochlea, vestibular system

Question 3

3 ossicles

Answer 3

malleus, incus, stapes

Question 4

ossicle attached to typmanic membrane

Answer 4

malleus

Question 5

this ossicle footplate is attached to oval window of inner ear

Answer 5

stapes

Question 6

malleus is aka

Answer 6

tensor tympani

Question 7

malleus innervation

Answer 7

trigeminal

Question 8

stapes innervation

Answer 8

facial nerve

Question 9

sound waves from the air must enter the blank inner ear

Answer 9

fluid

Question 10

fluid is blank compressible compared to air

Answer 10

less

Question 11

most sound hitting fluid is blank

Answer 11

reflected back

Question 12

part of ear like a transformer that increases pressure in the inner ear fluid

Answer 12

middle ear

Question 13

area of stapes is blank than tympanic membrane area

Answer 13

less

Question 14

force at tympanic membrane is blank force at oval window

Answer 14

equal

Question 15

pressure at the stapes is blank than pressure at tympanic membrane

Answer 15

higher

Question 16

aka oval window

Answer 16

fenestra vestibuli

Question 17

aka round window

Answer 17

fenestra cochlea

Question 18

thin, stiff blank responds best to blank frequency

Answer 18

base, high

Question 19

wide, flexible blank responds best to blank frequency

Answer 19

apex, low

Question 20

three fluid spaces of inner ear

Answer 20

scala vestibuli, media, tympani

Question 21

2 membranes of inner ear

Answer 21

reissners, basilar

Question 22

hair cells, support cells, and tectorial membrane of inner ear

Answer 22

organ of corti

Question 23

aka hair cells

Answer 23

stereocilia

Question 24

inner hair cells are in blank rows and transmit signals to blank

Answer 24

one, auditory nerve

Question 25

outer hair cells have blank rows and are for blank

Answer 25

three, electromotility

Question 26

hearing loss due to hair cells or auditory nerve fiber damage

Answer 26

sensorineural

Question 27

hair cell physical mechanical wave bends stereocilia which causes blank of ion channel

Answer 27

depolarization

Question 28

hair cells that lead to a change in shape and amplify basilar movement

Answer 28

outer

Question 29

inner hair cells synapse with blank percent of auditory nerve fibers

Answer 29

90%

Question 30

outer hair cells synapse with blank percent of cochlear nerve fibers

Answer 30

10%

Question 31

reflexive contraction of middle ear muscles to dampen loud sounds

Answer 31

acoustic reflex pathway

Question 32

descending auditory pathway projection that is control over the initiation of auditory signals... may dampen your own voice to protect your hearing

Answer 32

olivocochlear bundle

Question 33

semicircular canals

Answer 33

ampulae

Question 34

blank and blank do linear acceleration

Answer 34

utricle, saccule

Question 35

crystals in utricle and saccule

Answer 35

otoconia

Question 36

otoconia can fall into blank

Answer 36

posterior canal

Question 37

when otoconia fall into posterior canal

Answer 37

benign proxysmal positional vertigo

Question 38

vestibular system is most important for blank

Answer 38

balance/posture/proprioception

Question 39

head moves one way, eyes move other direction

Answer 39

vestibulo ocular reflex

Question 40

part of central focus in macula

Answer 40

fovea

Question 41

macular degeneration damages blank

Answer 41

fovea

Question 42

part of retina where axons of eye leave to get to the brain

Answer 42

blind spot

Question 43

visual system blank electromagnetic stimuli into an electrial signal/nerve impulses

Answer 43

transduces

Question 44

brain turns nerve impulses into blank

Answer 44

perceptions

Question 45

two types of photoreceptors

Answer 45

cones, rods

Question 46

peripheral vision uses blank mostly which are good in dim light

Answer 46

rods

Question 47

color vision in fovea

Answer 47

cones

Question 48

rods (rhodopsin) blank when light hits them which creates a signal

Answer 48

break apart, (opsin +retinal)

Question 49

three cell layers of retina

Answer 49

photoreceptor, bipolar, ganglion

Question 50

nasal hemiretina crosses at the blank

Answer 50

optic chiasm

Question 51

two types of retinal ganglion cells

Answer 51

parvocellular, magnocellular

Question 52

retinal ganglion cells that are small and near fovea for color

Answer 52

parvocellular

Question 53

retinal ganglion cells that are large, in periphery, and for motion

Answer 53

magnocellular

Question 54

there is blank of magnocellular and parvocellular layers

Answer 54

segregation

Question 55

each layer gets input from blank eyes

Answer 55

one

Question 56

cortex located in occipital lobe and surrounds calcarine fissure

Answer 56

primary visual cortex

Question 57

cortical pathway that is input from magnocellular and parvocellular... what an object is...color

Answer 57

ventral stream

Question 58

cortical pathway that is the "where" or "how"... movement... and is mostly magnocellular input

Answer 58

dorsal stream