U7L3 - Post Flashcard - Hearing and Balance

Front

What is the structure composing the outer ear?

Back

Pinna

Front

What structure in the outer ear vibrates as sound waves hit it and transmits vibrations to the ossicles?

Back

Tympanic membrane

Front

What happens when air waves cause vibrations in the tympanic membrane?

Back

They move the malleus, incus, and stapes on a pivot, which in turn moves the fluid within the cochlea, moving hair cells in the organ of Corti.

Front

Name one of the bones included in the ossicles.

Back

Hammer (malleus)

Front

What is the fluid contained within the osseous labyrinth that bathes the membranous labyrinth?

Back

Perilymph

Front

What is the function of the cochlea in the hearing process?

Back

It converts sound vibrations into neural signals.

Front

What role does the tympanic membrane play in hearing?

Back

It vibrates in response to sound waves and transmits these vibrations to the ossicles.

Front

What are the three bones that make up the ossicles?

Back

Malleus, Incus, Stapes.

Front

What is the organ of Corti responsible for?

Back

It contains hair cells that transduce sound vibrations into electrical signals.

Front

What is the difference between endolymph and perilymph?

Back

Endolymph is the fluid within the membranous labyrinth, while perilymph is the fluid that surrounds it in the osseous labyrinth.