ASLP 3030 Final Exam 2025 Questions and Answers

ASLP 3030 Final Exam 2025 Questions
and Answers


Two aspects of hearing considered - --CORRECT ANSWER--- anatomy and

physiology of hearing organs

- perception of sound

Outer ear - --CORRECT ANSWER--- auricle/pinna

- external auditory meatus (canal)

Acoustic resonator - --CORRECT ANSWER--- formed by the ear canal and

external ear

- sound waves with frequencies corresponding with resonant frequency will have

greater amplitudes of vibration

Resonant frequency - --CORRECT ANSWER--- approximately 3500 Hz

Middle ear - --CORRECT ANSWER--- auditory ossicles

- malleus

- stapes




....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1

, - incus

- malleus attaches to TM

- converts acoustic energy to mechanical energy

Impedance mismatch - --CORRECT ANSWER--10log (.001)= 30 dB

- loss of 30 dB

Why do we need a middle ear? - --CORRECT ANSWER--- we would lose 30 dB

of sound energy

- ME acts as transformer and increases sound pressure by slightly more than 30

dB, recovering all that would have been lost in the air-fluid barrier

How does the transformer work? - --CORRECT ANSWER--- areal mechanism

- ossicular level

- membrane buckling

3 principles to overcome impedance mismatch - --CORRECT ANSWER--- area

ratio

- curvature of the TM

- lever action

Impedance matching - --CORRECT ANSWER--- accomplished in the middle ear

by increasing the pressure fo the incoming stimulus



....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2