Chapter 7 - Vocab

Question 1

vestibular portion

Answer 1

houses the sense organs of equilibrium (balance)

Question 2

cochlear portion

Answer 2

houses the sense organ for hearing

Question 3

oval window

Answer 3

separates the inner ear from the middle ear

Question 4

utricle and saccule

Answer 4

membranous sacs; surrounded by perilymph; contain endolymph

Question 5

semicircular canals

Answer 5

arise from the utricle and return via the ampullae; contain endolymph

Question 6

ampulla

Answer 6

end organ for the sense of equilibrium

Question 7

scala vestibuli

Answer 7

extends from the oval window to the helicotrema; contains perilymph

Question 8

scala tympani

Answer 8

extends from round window to helicotrema; contain perilymph

Question 9

scala media

Answer 9

central duct; contains endolymph

Question 10

reissner’s membrane

Answer 10

separates the scala media from the scala vestibuli

Question 11

basilar membrane

Answer 11

separates the scala media from the scala tympani

Question 12

stria vascularis

Answer 12

produces endolymph and supplies blood, oxygen, and nutrients to the cochlea; sits on spiral ligament

Question 13

spiral ligament

Answer 13

provides support for the scala media

Question 14

organ of corti

Answer 14

sense organ of hearing; sits on the basilar membrane

Question 15

traveling wave

Answer 15

travels from base to apex (toward helicotrema); frequency of vibration is the stimulus frequency; amplitude of vibration increases as the stimulus intensity increases

Question 16

low pass filter

Answer 16

allows lower frequencies thorugh

Question 17

high pass filter

Answer 17

allows higher frequencies through

Question 18

band pass filter

Answer 18

allows sound between a higher and lower frequency cutoff through