Senses Test

Question 1

the “white” of the eye is called the

Answer 1

sclera

Question 2

the area of the retina that contains only cones is the

Answer 2

fovea centralis

Question 3

this structure drains the aqueous humor

Answer 3

scleral venous sinus

Question 4

myopia

Answer 4

• “nearsighted”
• Light from distant objects is focused in front of retina
• Cause: eyeball too long, lens too strong, or cornea too curved
• Correction: need concave corrective lenses

Question 5

emmetropia

Answer 5

“normal vision”

Lens focusing light on retina

Question 6

hyperopia

Answer 6

“farsighted”
Light from distant object focused behind retina
Cause: eyeball too short, or “lazy lens”
Correction: need convex corrective lenses

Question 7

what is the area of the visual pathway where optic fibers from the medial side of each eye cross over

Answer 7

optic chasim

Question 8

the clear central anterior portion of the sclera is called the

Answer 8

Cornea

Question 9

tears are produced by the lacrimal glands located where

Answer 9

lacrimal fossa

Question 10

what are the three types of cones that are sensitive to specific wavelengths of light

Answer 10

Blue light (blue cones)
Green light (green cones)
Green/red light (red cones)

Question 11

know the order of the parts through which light passes as it enters the eye

Answer 11

cornea, aqueous humor, iris, lens, nitrous humor, optic disk, optic nerve

Question 12

another name for the eardrum

Answer 12

tympanic membrane

Question 13

the deposits of calcium salts that help in static equilibrium are called

Answer 13

otoliths

Question 14

the structure that contains the receptors for hearing is

Answer 14

organ of court (receptors=hair cells

Question 15

Skin receptors

Answer 15

Naked nerve endings

Pressure, heat

Question 16

Photoreceptors

Answer 16

Eye

Light

Question 17

Chemoreceptors

Answer 17

Nose, tongue

Chemicals

Question 18

Mechanoreceptors

Answer 18

Touch hearing

Question 19

primary taste sensations

Answer 19

sweet, sour, bitter, salty, umami,

Question 20

what are gustatory cells stimulated by

Answer 20

• respond to dissolved chemicals

- Have gustatory hairs that get stimulated, depolarize and send impulse via three cranial nerves

Question 21

the reflex that allows you to bring your eyes “crossed” to see things up close is called the

Answer 21

Convergence

Question 22

which sense is the last sense to “leave” when you go to sleep and the first to become active when you wake up

Answer 22

hearing

Question 23

conduction deafness

Answer 23

loss of hearing due to something interfering with conduction of sound vibrations to fluid of inner ear

Question 24

sensorial deafness

Answer 24

deafness due to degeneration or damage to receptor cells in Organ of Corti, cochlear nerve or neurons to auditory cortex

Question 25

static equilibrium

Answer 25

Has receptors in vestibule-macule Macule=when head moves otoliths orient in response to gravity, pulls hairs, sends impulse to vestibular nerve Tells position of head, in relation of gravity, when not moving Receptor hairs are in otolithic membrane Gel material with otoliths (stone of calcium salts)

Question 26

dynamic equilibrium

Answer 26

``` Receptors in the semicircular canals Canals have three orientations Respond to rotation of head EX: boat rocking Twirling around ```

Question 27

how do colds effect all of the senses

Answer 27

when we have a cold all of the mucous that is present keeps us from being able to smell. This causes our taste to be off because the olfactory system is part of tasting food. The congestion may also lead to an ear infection, which impairs hearing. The receptors are affected so; therefore, touch is affected. Eyes can become infected or inflamed, which affects sight.