Module 4/chapter 28/sense Organs: The Eye And The Ear/ear

Front 1

The ear is a _____ organ.

Back 1

sensory

Front 2

Name two things that the ear is responsible for.

Back 2

1)hearing
2)helps maintain balance

Front 3

How many tones can the ear discriminate?

Back 3

more than 300,000 tones

Front 4

The ear is composed of what 3 regions?

Back 4

1)external ear
2)middle ear
3)inner ear

Front 5

Name the parts (4) of the external ear (one of the 3 regions of the ear).

Back 5

1)pinna/auricle
2)external auditory meatus
3)eardrum/tympanic membrane
4)cerumen

Front 6

pinna/auricle

Back 6

(part of the external ear) -- visible outside flap of the ear -- external to the head; It functions to capture sound waves as they go past the outer ear.

Front 7

external auditory meatus

Back 7

(part of the external ear) -- sound travels down the meatus leading to the eardrum

Front 8

eardrum/tympanic membrane

Back 8

(part of the external ear) -- membrane acts as barrier between external and middle ear -- sound waves vibrate off eardrum then travel to middle ear

Front 9

tympanic

Back 9

Means "pertaining to the ear drum."

Front 10

cerumen

Back 10

(part of the external ear) -- ear wax - provides protection for the ear

Front 11

Name the parts of the middle ear(one of the 3 regions of the ear) (3).

Back 11

1)ossicles
2)oval Window
3)eustachian tube

Front 12

ossicles

Back 12

(part of the middle ear) -- 3 tiny bones conduct sound through the middle ear, the malleus (hammer), incus (anvil) and stapes (stirrup)

Front 13

malleus

Back 13

One of the three ossicles of the middle ear. Also called the hammer.

Front 14

incus

Back 14

One of the three ossicles of the middle ear. Also called the anvil.

Front 15

stapes

Back 15

One of the three ossicles of the middle ear. It is attached to the oval window leading to the inner ear. Also called the stirrup.

Front 16

oval window

Back 16

(part of the middle ear) -- separates the middle ear from the inner ear

Front 17

eustachian tube

Back 17

(part of the middle ear) -- tube leading from the middle ear to pharynx,equalizing pressure.

Front 18

An infection that travels from the pharynx via the eustachian tube is called what?

Back 18

a middle ear infection, common in children

Front 19

Name the parts of the inner ear (one of the 3 regions of the ear) (2).

Back 19

1)labyrinth
2)organ of corti

Front 20

labyrinth

Back 20

(part of the inner ear) -- maze-like series of canals in the inner ear, consists of the vestibule and cochlea

Front 21

vestibular apparatus

Back 21

Part of the inner ear responsible for equilibrium. Conditions resulting in loss of balance may arise from this area.

Front 22

cochlea

Back 22

A portion of the labyrinth associated with hearing. It is rolled in the shape of a snail shell. The organs of Corti line the cochlea.