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C. PSY101 (MIDTERM) > The Eyes: Visual Sense > Flashcards

The Eyes: Visual Sense Flashcards

1
Q

Shape of the eyes

A

Ball-shaped

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2
Q

Power to react to the stimuli

A

Sensibility

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3
Q

The ability to conduct and transport messages

A

Conductivity

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4
Q

Capacity to react to certain stimuli

A

Specificity

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5
Q

Capability to be used to a particular stimuli

A

Adaptability

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6
Q

Where the eyes is found

A

Eye socket

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7
Q

A transparent protective window that is constantly washed by tears making it always clean

A

Cornea

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8
Q

Where the rays of light travel first

A

Cornea

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9
Q

Colored part of the eyes

A

Iris

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10
Q

At the middle of the iris is dark hole called ______ also it is where the light enters

A

Pupil

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11
Q

Once light passes through the pupil it enters the _____ which is located behind the pupil

A

Lens

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12
Q

The lens active entries of light to focus them on the _____

A

Retina

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13
Q

Is the part of the eyes that changes electromagnetic energy of light into useful information for the brain

A

Retina

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14
Q

A thin layer of nerve cells at the back of the eyeball

A

Retina

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15
Q

Two types of light sensitive receptor cells in the retina

A

Rods & cones

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16
Q

Responsible for a twilight vision or light of low intensity; long and cylindrical

A

Rods

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17
Q

Responsible for daylight vision and colors; short, thick and tapered

A

Cones

18
Q

The center of the retina is the ______ which is the point of the clearest vision in the daylight; very sensitive region of the retina

A

Fovea centralis

19
Q

It starts a chain of events which transform light into neural impulses that communicate to the brain through _____

A

Optic nerve

20
Q

The optic nerve is a bundle of ________ cells at the back of the eyeball

A

Ganglion

21
Q

It collect and summarize visual information which are gathered and move out of the back of the eyeball

A

Ganglion cells

22
Q

It is a bundle of ganglion axons

A

Optic nerve

23
Q

A point between and behind the eyes wherein the more impulses from the optic nerve are reversed in the brain

A

Optic chasm

24
Q

People who find difficulty in seeing a light or object at night are called

A

Night - blind

25
Q

Night blindness results from deficiency in the pigmentation layer in the retina which supplies

A

Rhodopsin

26
Q

Caused by ABNORMAL LONG EYEBALL so that the image is focused in front of the retina; can see the near objects.

A

Myopia or Nearsightedness

27
Q

Myopia or Nearsightedness have to wear eyeglasses with _____

A

Concave lenses

28
Q

when the EYEBALL IS SO SHORT dati image is focused behind the retina; can see clearly at a far distance

A

Hyperopia or Farsightedness

29
Q

Hyperopia or Farsightedness have to wear eyeglasses with ____

A

Convex lenses

30
Q

Farsightedness of OLD AGE which is caused by the SLOW HARDENING of the lens

A

Presbyopia

31
Q

Caused by the UNEVEN CURVATURE of the cornea

A

Astigmatism

32
Q

Is congenital farsightedness or defect in the eye muscles; have an equal vision in the two eyes

A

Cross-eye

33
Q

Cross eye can be corrected before the child turns ____

A

6 yrs old

34
Q

Caused by a CONCENTRIC NARROWING of the field of vision so that a person seems to be looking through a channel or pipe

A

Tunnel vision

35
Q

Caused by a muscular imbalance which permits light to be reflected from one point to fall on non-responding receptors in the two retina so that two different images are transmitted to the brain

A

Diplopia or double vision

36
Q

Resulting from excessive use of tobacco or alcohol or from over exposure to light producing temporary or permanent blindspot interfering with vision

A

Scoma

37
Q

A rapid involuntary side movement of the eyeball or optic nystagmus

A

Albinism

38
Q

The lens of the eyes changes from clear transparent structure to a cloudy or opaque eyes

A

Cataract

39
Q

Cause of new cases of blindness characterized by hemorrhaging of the tiny vessels of the retina as a result vision is blurred or distorted

A

Diabetic retinopathy

40
Q

Part of the eyes that give them color

A

Iris

C. PSY101 (MIDTERM) (8 decks)

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