The Middle Ear

Question 1

What are the three auditory ossicles

Answer 1

1.Malleus
2. Incus
3. Stapes

Question 2

What is another name for the Malleus?

Answer 2

Hammer

Question 3

What is another name for Incus?

Answer 3

Anvil

Question 4

What is another name for Stapes?

Answer 4

Sturrup

Question 5

Which auditory Ossicle is attached to the Tympanum?

Answer 5

Malleus

Question 6

What two Ossicles form a single unit?

Answer 6

Malleus and Incus

Question 7

What ossicle is attached to the Oval Window?

Answer 7

Stapes

Question 8

What is the name of the muscle that keeps the Tympanic Membrane tight?

Answer 8

Tensor Tympani

Question 9

What is the surface area of the Tympanic membrane?

Answer 9

55mm 2

Question 10

What type of system do the Ossicles form?

Answer 10

A lever system

Question 11

In the Ossicle Lever System, what two factors have an inverse relationship?

Answer 11

Motion and Force

Question 12

In the inverse relationship of the Ossicle Lever System, when motion decreases, how much does force increase?

Answer 12

1.3x

Question 13

What is the Surface area of the Stapes face?

Answer 13

3.2 square mm

Question 14

What has more inertia, Sound Waves or Fluid Waves

Answer 14

Fluid has greater inertia

Question 15

Without an ear drum or ossicles, hearing sensitivity would decrease by how many decibels?

Answer 15

15-20

Question 16

The Ossicle Lever System causes what?

Answer 16

A decrease in motion and an increase in force by 30 percent?