Diversified Health Occupations Chapter 6 Sec 7

Front 1

lacrimal glands

Back 1

in the eye produce tears

Front 2

conjunctiva

Back 2

lines the eyelids and covers the front of the eye to provide additional protection

Front 3

sclera

Back 3

outermost layer is the tough connective tissue

Front 4

cornea

Back 4

is a circular, transparent part of the front of the sclera

Front 5

choroid coat

Back 5

interlaced with many blood vessels, which nourish the eyes

Front 6

retina

Back 6

innermost layer of the eye

Front 7

iris

Back 7

is the colored portion of the eye

Front 8

pupil

Back 8

the opening in the center of the iris

Front 9

lens

Back 9

is a circular structure located behind the pupil and suspended in the position by ligaments

Front 10

lens

Back 10

is a circular structure located behind the pupil and suspended in the position by ligaments

Front 11

lens

Back 11

is a circular structure located behind the pupil and suspended in the position by ligaments

Front 12

refracts

Back 12

bends light rays so the rays focus on the retina

Front 13

aqueous humor

Back 13

is clear water fluid that fills the space between the cornea and iris

Front 14

vitreous humor

Back 14

is the jellylike substance that fills the area behind the lens

Front 15

amblyopia

Back 15

lazy eye, commonly occurs in early childhood

Front 16

astigmatism

Back 16

blurred vision caused by abnormal shape or curvature of the cornea

Front 17

cataract

Back 17

occurs when the normally clear lens becomes cloudy or opaque

Front 18

conjunctivitis

Back 18

pink eye, is a contagious inflammation of the conjuctiva and is usually cause by a virus

Front 19

glaucoma

Back 19

is a condition of increased intracular within the eye pressure caused by an excess amount of aqueous humor

Front 20

glaucoma

Back 20

is a condition of increased intracular within the eye pressure caused by an excess amount of aqueous humor

Front 21

hyperopia

Back 21

farsightedness

Front 22

myopia

Back 22

is nearsightedness

Front 23

presbyopia

Back 23

farsightedness caused by a loss of lens elasticity

Front 24

strabismus

Back 24

is when the eyes do not move or focus together

Front 25

pinna or auricle

Back 25

outer ear contains visible part of the ear

Front 26

auditory canal

Back 26

tube called the external auditory meatus

Front 27

tympanic membrane

Back 27

eardrum

Front 28

ossicles

Back 28

middle ear is a small space or cavity in the temporal bone and contains three small bones

Front 29

eustachian tube

Back 29

the middle of the ear is connected to the pharynx or throat by the tube called this

Front 30

vestibule

Back 30

acts as the entrance to the two pther parts of the inner ear

Front 31

cochlea

Back 31

shaped like a snail's shell, contains delicate hairlike cells which compose the organ of corti

Front 32

organ of corti

Back 32

a receptor of sound waves

Front 33

organ of corti

Back 33

a receptor of soun waves

Front 34

semicircular canals

Back 34

are also located in the inner ear. these canals contain a liquid and delicate hair-like cell that bend when the liquid moves with head and body movements

Front 35

hearing loss

Back 35

is calssified as either conductive or sensory

Front 36

meniere's disease

Back 36

results from a collection of fluid in the labyrinth of the inner ear and degeneration of the hair cell is the cochelea

Front 37

otitis externa

Back 37

is an inflammation of the external auditory canal

Front 38

otitis media

Back 38

is an inflammation or infection of the middle ear and is cause by a bacterium or virus

Front 39

otosclerosis

Back 39

is when the stapes becones immobile causing coductive hearing loss