Hearing Loss Ear Anatomy and Physiology 3

Question 1

Which three tiny bones make up the ossicular chain of the middle ear?

Accepted Answer

Malleus, incus, stapes

Answer

Cochlea, utricle, saccule

Answer

Hammer, cochlea, anvil

Answer

Stapes, pinna, tragus

Question 2

What is the main purpose of the ossicles' lever action and area ratio?

Accepted Answer

Amplifying and matching impedance to fluid

Answer

Reducing sound to protect the brain

Answer

Filtering out low frequencies

Answer

Generating earwax

Question 3

The basilar membrane responds to high-frequency sounds most strongly at which location?

Accepted Answer

Base of the cochlea

Answer

Apex of the cochlea

Answer

Helicotrema

Answer

Round window

Question 4

Which muscle contracts to dampen loud sounds by stiffening the stapes?

Accepted Answer

Stapedius

Answer

Tensor tympani

Answer

Buccinator

Answer

Masseter

Question 5

The cochlea is divided into how many fluid-filled compartments?

Accepted Answer

Three

Answer

One

Answer

Two

Answer

Four

Question 6

What primarily produces cerumen (earwax) in the external canal?

Accepted Answer

Ceruminous glands

Answer

Hair cells

Answer

Sebaceous bone

Answer

Cochlear duct

Question 7

The round window's main function is to:

Accepted Answer

Allow fluid pressure to dissipate

Answer

Collect sound waves

Answer

Produce endolymph

Answer

Sense gravity