The Ear

Question 1

What is static equilibrium?

Answer 1

Standing still, you know Which way is up, I respect to gravity.

Question 2

What is dynamic equilibrium?

Answer 2

Maintaining balance during spinning.

Question 3

What is the external ear?

Answer 3

Elastic cartilage covered with skin, a cone funneling sound waves into the external acoustic meatus. Only for sound.

Question 4

What is located in the external acoustic meatus?

Answer 4

Is lined with hairs, and at the base of the hairs are ceruminus glands which produce cerumen, which
Protects the tympanic membrane.

Question 5

Where is the tympanic membrane located?

Answer 5

Not in in the external or middle ear. Merely the division/barrier between both.

Transfers sound waves from the external ad to the middle ear

Question 6

Three parts of the auditory ossicles are:

Answer 6

Meatus, incus and stapes

Question 7

What causes the auditory ossicles to vibrate ?

Answer 7

The vibration of the tympanic membrane

Question 8

How are he auditory vesicles connected?

Answer 8

Fluid filled joints, so they can rock on each other, synovial joints.

Question 9

What is the divine between the middle and the inner ear?

Answer 9

The oval window and round window

Question 10

What is the inner air?

Answer 10

An air filled space which should have the same atmospheric pressure as the middle ear.

Question 11

What is the eustachian or auditory tube connected to?

Answer 11

From the middle ear right into he pharynx.

Question 12

Function for the chochlea

Answer 12

For hearing

Question 13

Function of vestibule

Answer 13

Static equilibrium

Question 14

Function of semicircular canals

Answer 14

Dynamic equilibrium

Question 15

What happens during the vibration of the oval window?

Answer 15

The fluid in the Scalia vestibule vibrates, causing the vestibular membrane to vibrate, causing the fluid in the chochlear duct to vibrate, the the basilar membrane to bounce up and down

Question 16

What is located on the top of hair cells?

Answer 16

Stereocilia, and when blended cause action potentials

Question 17

What is not affected by vibrations in the choclea?

Answer 17

Tectorial membrane

Question 18

As the flexibility of the choclea gets more flexible as it goes inward, which part is the most flexible?

Answer 18

The helicotrema

Question 19

Two parts of the vestibule:

Answer 19

Utricle
Saccule.

Each have a macula.

Question 20

What is located over the hair cells in the utricular and saccular matrix?

Answer 20

The gelatinous matrix, which, when moved, bend the stereocilia on the hair cells which activate an action potential

Question 21

What is at the end of each semicircular canal?

Answer 21

Ampullae, in which, when the flame-like cupola bends or moves, will assist with dynamic equilibrium.

Question 22

What are chochlear implants?

Answer 22

Inserted down the length of the choclea, receivers that send the information from the frequencies in the chochlea to antenna connected to nerves in the head.