Special Senses ear

Question 1

Auricle (pinna)

Answer 1

directs sound into auditory canal, outer most part of ear

Question 2

Auditory Canal

Answer 2

aka external acoustic meatus; short; narrow chamber that leads to ear drum

Question 3

Tympanic Membrane

Answer 3

aka eardrum; separates outer ear from middle ear; transmit sound waves through vibration to ossicles

Question 3

Ceruminous Glands

Answer 3

produce wax

Question 4

Cerumen

Answer 4

wax; protects the middle ear by trapping debris from env.

Question 5

Auditory Ossicles

Answer 5

middle ear bone

Question 6

Auditory Ossicles - Malleus

Answer 6

hammer shaped; middle bone

Question 7

Auditory Ossicles - Incus

Answer 7

anvil shaped; middle bone

Question 8

Stapes

Answer 8

stirrup shaped; innermost

Question 9

Eustachian Tubes

Answer 9

aka Auditory tube: helps equalize pressure within the ear by draining fluids from the middle ear to pharynx

Question 10

Labyrith

Answer 10

controls balance and equilibrium

Question 11

Cochlea

Answer 11

snail like structure of the inner ear; contains fluid that sound, vibration travels and is converted to electrical impulses

Question 12

Organ of Corti

Answer 12

Structure within cochlea that converts sound waves

Question 13

Semicircular Canals

Answer 13

tells your brain where your head is in space, maintains balance and spatial orientation

Question 14

Vestibulocochlear

Answer 14

aka, auditory nerve; 2 nerves, hearing sensation and balance and equilibrium parts