ear hearing

Question 1

2 senses housed in the ear

Answer 1

hearing and equilibrium (balance)

Question 2

properties of sound

Answer 2

Vibrating pressure from sound waves->frequency is the number of waves that pass at a given time->Amplitude(height) of the wave reveals its loudness.

Question 3

outer (external) ear

Answer 3

Pinna-collects sound
External auditory canal-channels sound inwards lined w skin and cerumen (ear wax)

Question 4

middle ear (tympanic cavity)

Answer 4

Eardrum
-Eustachian tube -connects ear and throat…allows for equalizing pressure while yawning or swallowing

Question 5

3 bones in middle ear

Answer 5

malleus,iris,stapes

Question 6

inner ear

Answer 6

-Boney labyrinth (boney chambers w/in the temporal bone
…includes sense organs for hearing and balance
FILLED W PERILYMPH(extracellular fluid)
-Cochlea… channels new vibrations through the perilymph and transfers to organ of corti
-Organ of corti…hair like cells that move do to waves in the perilymph