Chapter 7:7

Question 0

Lacrimal glands

Answer 0

In the eye produce tears, which constantly moisten and cleanse the eyes

Question 1

The Eye

Answer 1

Organ that controls the special sense of sight

Question 2

Conjunctiva

Answer 2

Mucous membrane covering front of eye

Question 3

Sclera

Answer 3

Tough outermost layer of eye

Question 4

Cornea

Answer 4

Circular transparent part of the front of the sclera.

Allows light rays to enter the eye

Question 5

Choroid Coat

Answer 5

Middle layer if the eye,

interlaced with many blood vessels that nourish the eyes

Question 6

Retina

Answer 6

Innermost layer of the eye made of many layers of nerve cells

Question 7

Iris

Answer 7

Colored portion of the eye

Question 8

Pupil

Answer 8

Opening in center of Iris

Question 9

Lens

Answer 9

Circular structure located behind pupil

Question 10

Refracts

Answer 10

(Bends) light rays so the rays focus on the retina

Question 11

Aqueous humor

Answer 11

Watery fluid between cornea and Iris

Question 12

Vitreous humor

Answer 12

Jellylike substance behind lens

Question 13

Pinna ( auricle)

Answer 13

Visible part of the ear

Question 14

Auditory canal

Answer 14

External auditory or meatus

Question 15

Cerumen

Answer 15

Wax that protects the ear

Question 16

The ear

Answer 16

Organ that controls the special senses of hearing and balance

Divided into three main sections
1. Outer ear

2. Middle ear
3. Inner ear

Question 17

Tympanic membrane

Answer 17

Eardrum, vibrates with sound waves

Separates the outer ear from the middle ear

Question 18

The middle ear

Answer 18

Small space or cavity in the temporal bone

Question 19

Ossicles

Answer 19

Three small bones in middle ear

Question 20

Eustachian tube

Answer 20

Equalizes air pressure on both sides of the tympanic membrane

Question 21

The Inner ear

Answer 21

Most complex portion of the ear

Separated from the middle ear by a membrane called oval window

Question 22

Vestibule

Answer 22

First section of inner ear that acts as an entrance to the other two parts

Question 23

Cochlea

Answer 23

Shaped like a snails she’ll, contains delicate hairlike cells, which compose the organ of Corti

Question 24

Organ of Corti

Answer 24

Receptor for sound waves

Question 25

Semicircular canals

Answer 25

Structure in inner ear that sends impulses for balance and equilibrium

Question 26

Cones

Answer 26

Used for vision when it’s light

Question 27

Hyperopia

Answer 27

Is farsightedness

Question 28

Conduction deafness occurs when

Answer 28

Sound waves are not conducted to the inner ear