Senses: Eyes

Question 1

the mucus membranes that lines eyelids & covers the sclera -

Answer 1

Conjuctiva

Question 2

nonvascular, transparent

focuses light rays - refracts

Answer 2

cornea

Question 3

a white coat of tough fibrous tissue

• gives support & protection
• the “white” of the eye

Answer 3

sclera

Question 4

in front of the lens

• it is filled with aqueous humor
• Constant pressure needs to be maintained to prevent glaucoma

Answer 4

anterior chamber

Question 5

it is a watery fluid in the anterior chamber

-also is transparent

Answer 5

aqueous humor

Question 6

A hole through which light enters the eye

Answer 6

pupil

Question 7

it is a doughnut shaped muscle

- regulates the amount of light entering the pupil

Answer 7

iris

Question 8

it’s secretes aqueous humor

Answer 8

Ciliary Body - Ciliary Process

Question 9

it contracts to change the lens shape and focus on near objects

Answer 9

ciliary muscle

Question 10

aqueous humor returns the venous blood system through this opening
-adjusts pressure of the ehe

Answer 10

canals of schlemm

Question 11

constructed of layers of protein is held in position by means of a suspensory ligament

• refracts
• focuses

Answer 11

lens

Question 12

it’s behind the lens

- is filled with the vitreous humor

Answer 12

posterior chamber

Question 13

a jelly-like fluid which functions to refracture light and keep retina in place

Answer 13

vitreous humor

Question 14

it’s function is converting images to impulse

it’s nervous layer has three zones of neurons

Answer 14

retina

Question 15

three zones of neurons of the retina:

Answer 15

Photo receptor cells
bipolar cells
ganglion cells

Question 16

-vison/black and white

Answer 16

rods

Question 17

daytime & color vision

Answer 17

cones

Question 18

…….. has the greatest concentration in there for the area of the greatest visual acuity and bright light

Answer 18

fovea centrals

Question 19

they pick up the impulses from the rods or cones and sends to the ganglion cells

Answer 19

bipolar cells

Question 20

this zone of neurons passes the impulse to the optic nerve

Answer 20

ganglion cells

Question 21

The two sides of her brain receive different outputs from our …..

Answer 21

eyes

Question 22

The left side of your brain receives input from the …. Side of our visual world

Answer 22

right

Question 23

and the right brain get input from the ….. Side of our world

Answer 23

left

Question 24

• thin layer
• with lots of blood vessels
• containing dark pigment to prevent scattering of incoming race
• absorbs light and nourishes the eye

Answer 24

choroid

Question 25

9 vision disorders -

Answer 25

``` myopia hyperopia presbyopia cataracts glaucoma conjucntivitis colorblind astigmatism ```

Question 26

nearsightedness. - far objects are blurry - Image focuses in the front of the retina

Answer 26

myopia

Question 27

farsightedness - near objects are blurry - Image focuses behind the retina

Answer 27

hyperopia

Question 28

"old eye" elasticity of age cannot see near 40-45

Answer 28

Presbyopia

Question 29

cloudy spot on the lens - dim light is difficult to see

Answer 29

cataracts

Question 30

increase intraocular pressure do to too much aqueous humor -loss of peripheral vision first

Answer 30

glaucoma

Question 31

inflammation of the conjunctiva | - maybe dry eyes or a bacterial infection(pink eye)

Answer 31

conjunctivitis

Question 32

inherited on X chromosome | - A problem with photo pigment production

Answer 32

colorblind

Question 33

this is caused by irregular curvature of the cornea, makes the image partly blurry

Answer 33

Astigmatism

Question 34

The properties of light –

Answer 34

A form of energy, behave as though they are propagated in waves, is made up of colors, it refracts

Question 35

trace light once it enters the eye -

Answer 35

``` light enters the eye and travels through the ... cornea - then aqueous humor - pupil - lens - vitreous humor - retina - bipolar cell - ganglion cell - optic nerve - optic chiasm - optic tract - occipital lobe. ```

Question 36

colorblind people sees the world as .... if they are color blind RED -

Answer 36

they see red as grey yellow as green & magenta as blue

Question 37

if they are colorblind BLUE -

Answer 37

they see red as red yellow as yellow and magenta as red

Question 38

if someone is colorblind GREEN -

Answer 38

they see red as red yellow as red megenta as magenta

Question 39

our eyes refract light by ......

Answer 39

bending the light as it travels through a transparent substance

Question 40

our eyes have four layers that refract this light -

Answer 40

cornea aqueous humor lens vitreous humor

Question 41

we accommodate by ....

Answer 41

the lens is changing its shape by using ciliary muscle contraction or extension in response to the varying distance of objects

Question 42

we see in dim light by .....

Answer 42

using our rods, which makes us have better peripheral vision in dim

Question 43

we see in bright light w.....

Answer 43

our cones & by the constriction of our pupils

Question 44

erythrolabe, chlorolabe, cyanolable -

Answer 44

all lobes

Question 45

erythrolabe is broken by ...

Answer 45

red light

Question 46

chlorolabe is broken by ...

Answer 46

green light

Question 47

cyanolable is broken by ....

Answer 47

blue light

Question 48

cerebrovascular accident also means -

Answer 48

stroke

Question 49

it's the loss of memory-

Answer 49

Alzheimer's

Question 50

this disorder is a decreased amount of dopamine

Answer 50

Parkinsons