chapter17 part 10 p.596-599 hearing

Question 0

cochlear duct lies between a pair of perilymphatic chambers or _______. what are they called?

Answer 0

scalae: scala vestibule, scala tympani

aka vestibular duct and tympanic duct

Question 1

frequency of the perceived sound is determined by what and intensity of the perceived sound is determined by what?

Answer 1

frequency-which part of the cochlear duct is stimulated

intensity- how many of hair cells at that location are stimulated

Question 2

the vestibular duct and tympanic duct are connected where?

Answer 2

tip of the cochlear spiral

Question 3

hair cells of the cochlear duct are located in a structure called what

Answer 3

spiral organ/organ of Corti

Question 4

the spiral organ sits on the basilar membrane. what does this membrane separate?

Answer 4

cochlear duct from scala tympani

Question 5

the hair cells in the spiral organ are arranged in a series of ______

Answer 5

longitudinal rows

Question 6

What do the hair cells of hearing lack compared to equilibrium hair cells

Answer 6

kinocilia

Question 7

the stereocilia are in contact with the overlying what firmly attached to inner wall of cochlear duct?

Answer 7

tectorial membrane

Question 8

What is pressure wave?

Answer 8

region where air molecules are crowded toegether and adjacent zone where they are farther apart

Question 9

cycles

Answer 9

waves

Question 10

Hz

Answer 10

cycles per second

Question 11

wavelength vs. frequency

Answer 11

inverse

Question 12

pitch

Answer 12

our sensory response to frequency

Question 13

high frequency/high pitch/short wavelength

Answer 13

15000Hz or more

Question 14

low freq sound/low pitch,/long wavelegth

Answer 14

100H or less

Question 15

sound energy is reported in

Answer 15

decibels

Question 16

resonance

Answer 16

when object vibrate at the same frequency as the sond

Question 17

tympanic membrane must vibrate ____ with the sound waves

Answer 17

in resonance