Lec-vision-hearing2025
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Last updated 5:27 AM on 3/12/25
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20 Terms
1
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The refractive power of the lens of the eye is measured in __________.
Diopters (D)
2
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The __________ of the retina is the light-sensitive membrane that forms the innermost layer of the eyeball.
Retina
3
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The loss of accommodation for near objects with age is known as __________.
Presbyopia
4
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The part of the eyeball covered by conjunctiva is known as __________.
Bulbar portion
5
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The __________ is the process by which the lens changes shape to focus on objects at different distances.
Accommodation
6
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Glaucoma is a disease of the eye characterized by __________ intraocular pressure.
Pathologically high
7
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The maximum wavelength in the visible spectrum is found in the color __________.
Red
8
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The __________ is responsible for black and white vision in low light conditions.
Rods
9
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The __________ of the eye is the angle of 160° in the horizontal meridian and 135° in the vertical meridian.
Visual field
10
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The two types of photoreceptors in the retina are __________ and __________.
Rods and cones
11
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Sound waves travel through the __________ and produce vibrations in the tympanic membrane.
External auditory meatus
12
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A __________ lens is used to correct myopia by allowing light rays to diverge before entering the eye.
Biconcave
13
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The __________ is a receptor organ for hearing located in the cochlea.
Organ of Corti
14
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When sound waves enter the cochlea, they stimulate __________ which leads to the generation of auditory impulses.
Hair cells
15
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The condition known as __________ involves the inability to appreciate one or more colors and is often sex-linked.
Color blindness
16
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The __________ is part of the brain where visual impulses ultimately reach after passing through the optic pathway.
Visual cortex
17
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In astigmatism, light rays are not brought to a sharp point on _________.
Retina.
18
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__________ reflexes are natural reflexes present since birth, while conditioned reflexes develop after learning.
Unconditioned
19
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An example of a monosynaptic reflex is the __________ reflex, elicited by the stimulation of muscle spindle.
Stretch
20
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The __________ of the eye is maintained by the aqueous humor.
Intraocular pressure
Flashcards (24)