Ear

Question 1

Three divisions of the ear

Answer 1

Outer ear

Middle ear

Inner ear

Question 2

Outer ear parts

Answer 2

Auricle

External auditory canal

Tympanic membrane

Question 3

Auricle

Answer 3

Acts as a funnel for sound wave
(The ear)

Made of elastic cartilage

Question 4

External auditory canal

Answer 4

Passageway through bone into the head

Contains ceruminious glands

Question 5

Ceruminous glands

Answer 5

Modified sweat glands that secrete ear wax inside the external auditory canal

Question 6

Tympanic membrane

Answer 6

The ear drum

Vibrates when struck by sound wave

Separates the outer and middle ear regions

Question 7

Middle ear region parts

Answer 7

Cavity in skull’s temporal bone

Eustachian tube

Auditory ossicles

Question 8

Eustachian (auditory) tube

Answer 8

Diagonal tube that connects middle ear to superior region of nasal cavity

Equalizes pressure

Question 9

Auditory ossicles

Answer 9

Three tiny bones that vibrate when struck by sound waves

Question 10

Auditory ossicle names

Answer 10

Malleus

Incus

Stapes

Question 11

Malleus

Answer 11

Attaches to medial surface of tympanic membrane

Question 12

Incus

Answer 12

Vibrates when struck by malleus

Median of the ossicles

Question 13

Stapes

Answer 13

Vibrates when struck by incus and leads to inner ear region

Smallest of ossicles

Question 14

The inner ear

Answer 14

Spiral shaped passageways deep in the ear

Neuron rich area that stimulates cranial nerve VII

Question 15

Cranial nerve VII

Answer 15

Vestibulocochlear nerve

Terminated in brains temporal lobe

Question 16

Cochlea

Answer 16

The spiral shaped bone in the inner ear

Question 17

Three fluid filled membranes of the cochlea:

Answer 17

Cochlear duct

Scala tympani

Scala vestibuli

Question 18

Cochlear duct

Answer 18

Triangular chamber that contains organ of corti

Question 19

Organ of corti

Answer 19

Protrusion/bump inside the cochlea duct

Small elevation of neurons

Question 20

Tectorial membrane

Answer 20

Finger like membrane next to the organ of corti

Question 21

What attaches the organ of corti and tectorial membrane?

Answer 21

Cilia

Question 22

Scala tympani

Answer 22

Chamber inside cochlea that shares wall with organ of corti

Question 23

Scala vestibuli

Answer 23

Chamber in cochlea that shares wall with opposite side of organ of corti

Question 24

Opening in the cochlea bone that allows stapes vibrations to pass through:

Answer 24

Oval window

Question 25

What causes stimulation of cranial nerve VIII

Answer 25

Cilia movement in the organ of corti

Question 26

Opening responsible for absorbing displacement of the three fluid membranes

Answer 26

Round window

Question 27

Semicircular canals location

Answer 27

Inside inner ear. Anterior canal is the most superior one Posterior canal Horizontal canal