The Ear & Hearing Ch. 2

Question 1

The human ear is divided into what three parts?

Answer 1

The outer ear, the middle ear, and the inner ear.

Question 2

Shape of Malleus

Answer 2

Hammer

Question 3

Shape of Incus

Answer 3

Anvil

Question 4

Shape of Stapes

Answer 4

Stirrup

Question 5

Acoustic sound pressure is measured in ______

Answer 5

Sound-pressure level (dB-SPL)

Question 6

TTS stands for?

Answer 6

Temporary threshold shift; a sensation that happens after exposure to loud sound for a few hours.

Question 7

Sensorineural hearing loss

Answer 7

Is nerve based and whatever the degree of hearing loss is permanent and irreversible.

Question 8

Conductive hearing loss occurs when ____

Answer 8

There is a problem transferring sound waves anywhere along the pathway through the outer ear, tympanic membrane, or middle ear.

Question 9

Semicircular canals

Answer 9

Necessary for balance.

Question 10

Cochlea

Answer 10

Snail-shaped structure filled with fluid.

Question 11

True or False

The middle ear has three of the smallest bones in the body: Malleus, Incus, and Stapes.

Answer 11

True

Question 12

True or False

Humans can recognize the pitch of sound between 20 Hz - 20,000 Hz.

Answer 12

False