THE EAR

Question 1

Fold surrounding the pinna

Answer 1

Helix

Question 2

Curved ridge in front of the helix

Answer 2

Antihelix

Question 3

Prominence over external auditory canal

Answer 3

Tragus

Question 4

Ear projection opposite the tragus

Answer 4

Antitragus

Question 5

Fleshy part at the base of the ear

Answer 5

Lobule

Question 6

The external auditory canal is made up of?

Answer 6

Lateral part(Cartilage)
Medial part(Bone)

Question 7

Has hair and secretes ear wax

Answer 7

Lateral part

Question 8

A thin, cone shaped membrane that separates the outer ear from middle ear

Answer 8

Tympanic membrane

Question 9

Function of tympanic membrane

Answer 9

Transmits sound to the ossicles in the middle ear

Question 10

Concave part of the tympanic membrane

Answer 10

Outer surface

Question 11

Convex part of tympanic membrane

Answer 11

Inner surface

Question 12

Point where convexity is at maximum in the tympanic membrane

Answer 12

Umbo

Question 13

2 parts of the tympanic membrane

Answer 13

Pars tensa and pars flaccida

Question 14

Uppermost loose area of the tympanic membrane

Answer 14

Pars flaccida

Question 15

Lower tightly stretched area

Answer 15

Pars tensa

Question 16

3 bones of the middle ear

Answer 16

Malleus, incus and stapes

Question 17

Lateral wall of middle ear(Labyrinthine wall)

Answer 17

Tympanic membrane

Question 18

Medial wall of middle ear(Membranous wall)

Answer 18

Oval window, round window and promontary

Question 19

Roof of middle ear(Tegmental wall)

Answer 19

Tegmen tympani bone

Question 20

Separates the middle ear from middle cranial fossa

Answer 20

Tegmen tympani

Question 21

Transmits sound waves from the ossicles to the inner ear

Answer 21

Middle ear

Question 22

Lies in the petrous part of temporal bone

Answer 22

Inner ear

Question 23

Middle ear muscles

Answer 23

Stapedius and tensor tympani

Question 24

Muscle that helps open eustachian tube

Answer 24

Tensor tympani

Question 25

Muscle attaching to stapes and contracts in response to loud sounds, cheweing, speaking

Answer 25

The stapedius

Question 26

Fluid in membranous labyrinth

Answer 26

Endolymph

Question 27

Fluid separating the bony labyrinth from membranous labyrith

Answer 27

Perilymph

Question 28

Conical central axis which the cochlea makes its 2 3/4 turns

Answer 28

Modiolus

Question 29

Projects from the modiolus and divides the cochlea into scala vestibuli and scala tympani

Answer 29

Spiral ridge

Question 30

An opening at the apex where the two passages can communicate(Inner ear)

Answer 30

Helicotrema

Question 31

Central part of bony labyrinth

Answer 31

Vestibule