part 8

Question 1

outer ear and its parts

Answer 1

1. pinna
2. external auditory meatus(canal)
3. tympanic membrane(eardrum)

Question 2

pinna and its function

Answer 2

collects vibrations from the air which produce sound

Question 3

External auditory meatus and its function

Answer 3

secretes ceruminous gland which produces cerumen (ear wax)

Question 4

middle ear

Answer 4

It has three bones 1. Malleus (attached to the eardrum)

2. Incus
3. Stapes ( leads to another chamber which is known as the oval window of the inner area)

Question 5

what is the tube present in the middle ear called

Answer 5

Eustachian tube which opens into the nasopharynx

Question 6

inner ear

Answer 6

Inner ear is filled with a fluid called Bony labrynth and the bony labrynth also filled with another fluid called perilymph

Question 7

inner ear part 2

Answer 7

Inside the bony labrynth, there is another membranous labrynth and inside is also a fluid called endolymph

Question 8

what is the coiled structure of inner ear called

Answer 8

Cochlea