Exercise 17

Question 1

External ear that catches sound and pushes it into the inner ear canal

Answer 1

Pinna

Question 2

The two parts of the ear, small bumps, opposite one another

Answer 2

Tragus and antitragus

Question 3

Extension off the bottom of the ear

Answer 3

Ear lobe

Question 4

Ridges on the top of the ear, used to catch more sounds

Answer 4

Helix

Question 5

Large tube between the outside of the ear and the tympanic membrane

Answer 5

External auditory meatus

Question 6

Ear drum

Answer 6

Tympanic membrane

Question 7

Inner ear bone, MIS, M

Answer 7

Malleus

Question 8

Inner ear bone, MIS, I

Answer 8

Incus

Question 9

Inner ear bone, MIS, S

Answer 9

Stapes

Question 10

Cavity after the tympanic membrane, houses the MIS

Answer 10

Tympanic cavity

Question 11

Where the MIS sits

Answer 11

Auditory tube

Question 12

Division between the middle ear and the inner ear (covered by the stapes)

Answer 12

Oval Window

Question 13

Allows vibrations to travel from the middle ear to the inner ear, sits on the cochlea

Answer 13

Round Window

Question 14

Upper divide of the Cochlea cross-section, contains perilymph

Answer 14

Scala vestibuli

Question 15

Lower divide of the Cochlea cross-section, contains perilymph

Answer 15

Scala Tympani

Question 16

Divides the scala vestibuli and the cochlear duct

Answer 16

Vestibular membrane

Question 17

Flap acting on the hairs within the cochlea cross section

Answer 17

Tectorial membrane

Question 18

Base of membrane that is the separation between the cochlear duct and the scala tympani

Answer 18

Basilar Membrane

Question 19

Hair on the basilar membrane that are visible

Answer 19

Outer hair cells

Question 20

Hair cells within the basilar membrane that are not visible

Answer 20

Inner hair cells

Question 21

Carry nerve signals from the hair cells and is the large group of ganglion on the cochlear cross section

Answer 21

Spiral Ganglion

Question 22

Fibers that are on the cochlear nerve

Answer 22

Fibers of the cochlear nerve

Question 23

Liquid filling the Scala Vestibuli and the Scala Tympani

Answer 23

Perilymph

Question 24

Liquid filling the cochlear duct, inside the cochlear cross section

Answer 24

Endolymph

Question 25

The bony outer wall of the inner ear, consists of the vestibule, semicircular ducts, and cochlea

Answer 25

Bony Labyrinth

Question 26

The membranous inner wall of the inner ear, within the vestibule, semicircular ducts, and cochlea

Answer 26

Membranous Labyrinth

Question 27

Ends of the semicircular ducts

Answer 27

Ampulla

Question 28

Closest structure inside the inner ear to the cochlea

Answer 28

Saccule

Question 29

Proximal to the saccule but further from the cochlea than the saccule

Answer 29

Utricle

Question 30

Comes of the Vestibule, which is located where all the semicircular ducts come together

Answer 30

Vestibular Nerve