ear - unit 5

Question 1

3 parts to the ear

Answer 1

outer, middle, inner

Question 2

the auricle, outside of ear. satallite dish

Answer 2

pinna

Question 3

the tube which sound waves pass through in outer ear

Answer 3

external auditory meatus

Question 4

ear wax

Answer 4

cerumen

Question 5

ear drum, vibrates the soundwaves

Answer 5

tympanic membrane

Question 6

3 bones in middle ear

Answer 6

malleus, incus, stapes

Question 7

thin oval membrane, stapes cover it to transmit vibrations

Answer 7

oval window

Question 8

connects ear to pharynx

Answer 8

pharyngotympanic tube

Question 9

cavity within temporal bone, shaped like a sanil

Answer 9

bony labryinth

Question 10

membranous sac deep within bony labryinth

Answer 10

membranous labryinth

Question 11

snail shell shaped. has hearing receptors

Answer 11

cochlea

Question 12

membranous labryinth of cochlea

Answer 12

cochlear duct

Question 13

hearing receoptor cells withing cochlea that contain cilia that stick up into a gel-like membrane

Answer 13

hair follicles

Question 14

bending of __ on hair cells trigger neurotransmitter release and activate sensory neuorns

Answer 14

cilia

Question 15

high pitch = front cells activate
low pitch = back cells activate
inside cochlea

Answer 15

frequency

Question 16

high intensity = increase in hair cell activation
inside cochlea

Answer 16

volume

Question 17

middle part of the inner ear. gives rise to static equilibrium

Answer 17

vestibule

Question 18

upper region of inner ear. 3 loops. gives rise to dynamic equilibrium

Answer 18

semicircular canals

Question 19

sensation of head position in relation to gravity

Answer 19

static equilibroium

Question 20

sensation of head movement

Answer 20

dynamic equillibrium