THE EAR

Question 1

What are the 3 special senses that the ear serves as a receptor organ

Answer 1

hearing
static equilibrium
dynamic equilibrium

Question 2

It is an external ear flap that protects the auditory opening. Functions as an a “radiator” in thermoregulation

Answer 2

Auricle (pinna)

Question 3

It is a tube-like passage that carries airborne sound waves. Also called an ear canal.

Answer 3

External auditory meatus

Question 4

Also called as ear drum. It carries the sound energy into the middle ear

Answer 4

Tympanic membrane

Question 5

It is an air-filled cavity lined with mucous membrane

Answer 5

Middle ear

Question 6

Also called as the hammer. Tiny, club-shaped bone attached to eardrum. It vibrates when sound waves pass through from the eardrum

Answer 6

Malleus

Question 7

Also called an anvil. this is tiny bone forms a synovial joint with the malleus

Answer 7

Incus

Question 8

Also called stirrup. This ossicle is joined to the incus, from which it receives vibrations. The vibrations are amplified for better reception

Answer 8

Stapes

Question 9

collapsible tube running between the middle ear and the pharynx. It allows internal pressure to equalize with atm so that the high pressure on one side does not muffle the eardrum

Answer 9

Auditory (eustachian) tube

Question 10

it is the third division of the ear apparatus

Answer 10

inner ear

Question 11

a maze like__________ contains a similarly shaped but smaller membranous labyrinth

Answer 11

bony labyrinth

Question 12

The fluid inside the membranous labyrinth is called _____________

Answer 12

endolymph

Question 13

the fluid around the outside of the membranous labyrinth is called __________

Answer 13

perilymph

Question 14

long passage coiled like a snail

Answer 14

cochlea

Question 15

central area of the inner ear

Answer 15

vestibule

Question 16

it is a 3 looped structures detect rotational movements

Answer 16

semi-circular canals