BIO302 Exam 3 Actual Exam Questions and Answers A+ Graded (2025)

BIO302 Exam 3 Actual Exam
Questions and Answers A+ Graded
(2025)




as .frequency .increases, .pitch... .- .CORRECT .ANSWER-increases

what .is .the .highest .note .a .human .can .hear? .- .CORRECT .ANSWER-20,000 .Hz

frequency .- .CORRECT .ANSWER-how .often .sound .waves .compress

amplitude .- .CORRECT .ANSWER-how .much .the .waves .move .from .baseline

as .the .amplitude .increases, .the .sound... .- .CORRECT .ANSWER-increases

what .is .the .pinna? .- .CORRECT .ANSWER-a .funnel .that .directs .sound .waves .into
.the .auditory .canal.


what .is .the .tympanic .membrane? .- .CORRECT .ANSWER-it .separates .the .auditory
.canal .from .the .middle .ear.


What .are .the .three .parts .of .the .outer .ear? .- .CORRECT .ANSWER-the .pinna, .the
.auditory .canal, .and .the .tympanic .membrane


what .is .the .middle .ear .filled .with? .- .CORRECT .ANSWER-air

what .are .the .three .bones .in .the .middle .ear? .- .CORRECT .ANSWER-malleus,
.incus, .and .stapes


what .is .the .malleus? .- .CORRECT .ANSWER-a .hammer .that .is .physically .attached
.to .the .tympanic .membrane .and .connects .to .the .incus


the .incus .connects .to .the... .- .CORRECT .ANSWER-stapes

the .stapes .connects .to .the... .- .CORRECT .ANSWER-oval .window

what .is .the .oval .window? .- .CORRECT .ANSWER-it .separates .the .middle .ear .from
.the .inner .ear.

, what .is .the .function .of .the .tympanic .membrane? .- .CORRECT .ANSWER-amplify
.incoming .sounds


what .is .the .function .of .ossicles? .- .CORRECT .ANSWER-they .act .in .a .lever-llike
.fashion .to .amplify .the .movements .of .the .tympanic .membrane .to .the .oval
.window.


what .is .the .inner .ear .filled .with? .- .CORRECT .ANSWER-liquid

do .sounds .travel .well .in .the .inner .ear? .- .CORRECT .ANSWER-no- .sound .waves
.do .not .travel .well .when .moving .through .the .denser .medium.


what .are .the .two .structures .of .the .inner .ear? .- .CORRECT .ANSWER-the
.semicircular .canals .and .the .cochlea


what .does .the .ampula .contain? .- .CORRECT .ANSWER-the .crista, .hair .bundles,
.and .the .cupula


what .happens .to .the .cupula .when .the .head .rotates? .- .CORRECT .ANSWER-it
.becomes .distorted .by .the .fluid .in .the .membranous .canal


how .is .the .basilar .membrane .organized? .- .CORRECT .ANSWER-tonotopically

what .is .tonotopical .organization? .- .CORRECT .ANSWER-different .frequencies .of
.sound .affect .different .areas .of .the .basilar .membrane.


what .is .the .function .of .the .base .of .the .basilar .membrane? .- .CORRECT .ANSWER-
it .is .a .stiff .area .that .vibrates .only .with .high .frequency .sound .waves

what .is .the .function .of .the .apex .of .the .basilar .membrane? .- .CORRECT .ANSWER-
it .is .a .wider .area .that .is .flexible .and .vibrates .at .low .frequencies.

where .is .the .organ .of .corti? .- .CORRECT .ANSWER-basilar .membrane

what .lines .the .organ .of .corti? .- .CORRECT .ANSWER-hair .cells

what .is .the .function .of .the .organ .of .corti? .- .CORRECT .ANSWER-the .hairs .bend
.by .different .frequencies .of .sound .waves .and .then .are .converted .to .a .neural

.signal.


where .do .the .Organ .of .Corti .hair .cells .synapse? .- .CORRECT .ANSWER-spiral
.ganglion .cells


what .is .the .function .of .spiral .ganglion .cells? .- .CORRECT .ANSWER-their .axons
.make .up .the .auditory . nerve, .which .will .project .to .the .cochlear .nuclei .of .the
.medulla.