Eyes Flashcards

1
Q

Cataracts

A

Loss of lense transparency

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2
Q

Astigmatism

A

Asymmetric lens curve

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3
Q

Myopia

A

Eyeball too deep, nearsighted

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4
Q

Hyperopia

A

Eyeball too shallow, farsighted

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5
Q

Terachomats

A

Fourth”gold” cone,can see 100,000,000 more shades.

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6
Q

Lgn, lateral geniculate nucleus

A

Visual in sent here

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7
Q

The endocrine system

A

Hormones and communication

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8
Q

Endocrine secretion

A

Blood stream->everywhere!

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9
Q

Endrocrine system cost and speed

A

Low cost but a bit slow.

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10
Q

Name all the endocrine glands!

A

Name all the hormones!

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11
Q

Tropic hormones

A

Hormones to release other hormones

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12
Q

Bleaching

A

They receptors respond to light through a process called bleaching. In this process a molecule of visual pigment absorbs a photon of visible light and there by chemically changes into a Nother compound that absorbs light less well or perhaps differs in its wavelength. Recovery: Rhodopsin is broken down and reassembled. Time-consuming and expensive

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13
Q

Photopic vision

A

Vision in well lit conditions. Provides for color vision and utilizes the retinas cones.

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14
Q

Scotopic vision

A

Vision under low light conditions. Cone cells are nonfunctional and your vision in low light is produced exclusively through rod cells.

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