Special Senses

Question 0

Part of conjunctiva that lines eyelids

Answer 0

Palpebral conjunctiva

Question 1

Thin transparent mucous membrane covering thin inner surface of eyelids and anterior surface of eye

Answer 1

Conjunctiva

Question 2

Bulbar conjunctiva only covers white of eye. True or false?

Answer 2

True

Question 3

Lacrimal gland:secretes __

Answer 3

Tears

Question 4

Conjunctival sac:where contact lens lies. True or false?

Answer 4

True

Question 5

White of eye
Protects eyeball
Sturdy anchor site for extrinsic eye muscles
Maintains eye shape

Answer 5

Sclera

Question 6

Light bending apparatus component with pain receptor.

Lets the light enter

Answer 6

Cornea

Question 7

External eye structures

Answer 7

Conjunctiva

Lacrimal apparatus

Question 8

3 layers of internal eye

Answer 8

Fibrous
Vascular
Nervous

Question 9

Another name for vascular layer of inner eye

Answer 9

Uvea

Question 10

Vascular layer of inner eye is composed of 3 parts. What are these parts?

Answer 10

Choroid
Iris
Ciliary body

Question 11

False about choroid
A.Blood vessels provide nutrition to the eye
B.brown pigment prevents light scattering by facilitating absorption
C.contains vitreous humor

Answer 11

C.contains vitreous humor

Question 12

False about iris
A.where rhodopsin cycle takes place
B.varies pupil size based on stimuli
C.visible colored part of eye

Answer 12

A.where rhodopsin cycle takes place

Question 13

Olfactory apparatus has three types of cells. What are these three cells?

Answer 13

Receptor
Basal
Supporting

Question 14

Receptor cells in olfactory apparatus: what are they? What do they do?

Answer 14

bipolar neurons that send axons to olfactory bulb

Question 15

Basal cells in olfactory apparatus: what are they? What do they do?

Answer 15

stem cells that produce new receptor cells every 1-2 months

Question 16

Which pair is mismatched?
A.ciliary muscles:control lens shape
B.ciliary process: its capillaries secrete fluid for eye’s anterior chamber
C.ciliary zonule:holds lens in upright position
D.none of the above

Answer 16

D.none of the above

Question 17

Pupil constriction is parasympathetic action
Pupil dilation is sympathetic action

Are both statements true or false?

Answer 17

True

Question 18

The retina’s outer layer transduces light energy while the inner layer stores vitamin A. T or F?

Answer 18

F.The retina’s outer layer stores vitamin A while the inner layer transduces light energy

Question 19

False about rods
A. Provide color vision
B. Discriminate shape and movement
C. Dim-light and peripheral vision receptor

Answer 19

A. Provide color vision

Rods do not provide color vision

Question 20

Rhodopsin is __+___

Answer 20

Opsin plus retinal

Question 21

Color vision is provided by cones via 3 types of color sensitive opsin: __,__&__

Answer 21

Red green and blue

Question 22

When there is bright light, little rhodopsin is dissociated. True or false?

Answer 22

False. Much dapat.

Question 23

In dim light, rhodopsin forms faster. True or false?

Answer 23

False. Slower dapat

Question 24

``` Photoreceptors Amacrine cells Horizontal Cells Ganglion Cells Bipolar Cells ``` Please arrange these cells of the neural layer from posterior to anterior.

Answer 24

Photoreceptors (rods and cones) Bipolar cells Ganglion Cells Horizontal Cells Amacrine Cells

Question 25

``` Photoreceptors Bipolar cells Ganglion Cells Horizontal Cells Amacrine Cells ``` Which of these provides the most direct route for transmitting visual information to the brain?

Answer 25

Photoreceptors Bipolar cells Ganglion Cells Horizontal cells and amacrine cells mediate lateral interactions in the outer and inner plexiform layers, respectively.

Question 26

Neural Pathway of Vision 1) Light penetrates ___ 2) Photoreceptors (Rods and Cones) transduce light into ____ 3) Rods and Cones excite ____ 4) ____excite ganglion cells 5) Axons of ganglion cells from optic nerve leaving the eyeball (_____) 6) To ____ and then the primary visual cortex

Answer 26

1) retina 2) action potential 3) + 4)bipolar cells 5) blind spot 6) thalamus

Question 27

False about fovea centralis A)pit in the center of macula B)contains only cones C)area of highest visual acuity

Answer 27

B)contains only cones Rods dapat.

Question 28

Eye part that Refracts light and focuses onto fovea centralis

Answer 28

Lens

Question 29

Respective dominant fluids of Anterior chamber: ___ Posterior chamber: ___

Answer 29

Aqueous humor | Vitreous humor

Question 30

scleral venous sinus (canal of Schlemm) found in (anterior,posterior)chamber of eye

Answer 30

Anterior

Question 31

75% of refraction done by the ___; the rest is done by the ___

Answer 31

Cornea | Lens

Question 32

lens provides fine control of focusing because its curvature can be adjusted. True or false?

Answer 32

True

Question 33

process by which lens changes it shape to adjust its refractive power in order to reduce the blurring of an image on the retina (to achieve highest degree of visual acuity)

Answer 33

Accommodation

Question 34

contraction – ___ refractive power; relaxation – ___ refractive power Choices: increases/decreases

Answer 34

Contraction increases | Relaxation decreases

Question 35

Respective dominant fluids of Anterior chamber: ___ Posterior chamber: ___

Answer 35

Aqueous humor | Vitreous humor

Question 36

scleral venous sinus (canal of Schlemm) found in (anterior,posterior)chamber of eye

Answer 36

Anterior

Question 37

75% of refraction done by the ___; the rest is done by the ___

Answer 37

Cornea | Lens

Question 38

lens provides fine control of focusing because its curvature can be adjusted. True or false?

Answer 38

True

Question 39

process by which lens changes it shape to adjust its refractive power in order to reduce the blurring of an image on the retina (to achieve highest degree of visual acuity)

Answer 39

Accommodation

Question 40

contraction – ___ refractive power; relaxation – ___ refractive power Choices: increases/decreases

Answer 40

Contraction increases | Relaxation decreases