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Muscles In The Eyes Flashcards

(90 cards)

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1
Q

Which muscle controls the upward movement of the eye?

A

Superior rectus muscle

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2
Q

What is the main function of the inferior rectus muscle?

A

Controls the downward movement of the eye

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3
Q

Which muscle is responsible for moving the eye towards the nose?

A

Medial rectus muscle

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4
Q

What is the function of the lateral rectus muscle?

A

Moves the eye away from the nose

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5
Q

Which muscle is responsible for rotating the eye downward and away from the nose?

A

Inferior oblique muscle

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6
Q

What muscle is involved in rotating the eye upward and away from the nose?

A

Superior oblique muscle

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7
Q

Which muscle is responsible for controlling the rotation of the eye?

A

Oblique muscles

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8
Q

What is the function of the levator palpebrae superioris muscle?

A

Raises the upper eyelid

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9
Q

Which muscle is responsible for closing the eyelids?

A

Orbicularis oculi muscle

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10
Q

What is the function of the ciliary muscle?

A

Controls the shape of the lens for focusing

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11
Q

Which muscle controls the size of the pupil?

A

Iris sphincter muscle

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12
Q

What is the function of the inferior oblique muscle?

A

Rotates the eye upward and away from the nose

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13
Q

Which muscle is responsible for rotating the eye upward and towards the nose?

A

Superior oblique muscle

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14
Q

What muscle is involved in moving the eye downward and towards the nose?

A

Inferior rectus muscle

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15
Q

Which muscle controls the lateral movement of the eye?

A

Lateral rectus muscle

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16
Q

What is the main function of the superior oblique muscle?

A

Rotates the eye downward and towards the nose

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17
Q

Which muscle is responsible for moving the eye upward and towards the nose?

A

Superior rectus muscle

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18
Q

Which muscle is involved in rotating the eye downward and away from the nose?

A

Inferior oblique muscle

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19
Q

What muscle is responsible for controlling the rotation of the eye?

A

Oblique muscles

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20
Q

What is the function of the superior oblique muscle?

A

Rotates the eye downward and towards the nose

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21
Q

Which muscle is responsible for moving the eye upward and away from the nose?

A

Superior rectus muscle

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22
Q

What are the photoreceptor cells responsible for detecting light in the retina?

A

Rods and cones

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23
Q

Which type of photoreceptor cells are responsible for color vision?

A

Cones

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24
Q

Which type of photoreceptor cells are responsible for low-light vision?

A

Rods

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25
True or False: Rods are more sensitive to light than cones.
True
26
What pigment is found in rods that allows them to detect light?
Rhodopsin
27
What pigment is found in cones that allows for color vision?
Iodopsin
28
Which type of photoreceptor cells are more densely packed in the fovea?
Cones
29
Which type of photoreceptor cells are more abundant in the peripheral retina?
Rods
30
What is the function of rods in the visual system?
Detecting low levels of light
31
What is the function of cones in the visual system?
Detecting color and fine detail
32
What is the main neurotransmitter released by photoreceptor cells in response to light?
Glutamate
33
What is the ratio of rods to cones in the human retina?
Approximately 20:1
34
What is the name of the area in the retina with the highest concentration of cones?
Fovea
35
What part of the eye are rods and cones located in?
Retina
36
Which type of photoreceptor cells are responsible for providing detailed central vision?
Cones
37
Which type of photoreceptor cells are responsible for peripheral vision?
Rods
38
What is the primary function of rods in dim lighting conditions?
Detection of motion and shapes
39
What is the primary function of cones in bright lighting conditions?
Color perception and visual acuity
40
What is the shape of the outer segment of rods and cones?
Cylindrical
41
What is the shape of the inner segment of rods and cones?
Spherical
42
Which type of photoreceptor cells have a higher spatial density in the central retina?
Cones
43
Which type of photoreceptor cells have a higher spatial density in the peripheral retina?
Rods
44
What is the primary purpose of rods and cones in the visual system?
Converting light into neural signals
45
What is the main difference in function between rods and cones?
Rods function better in low light, while cones function better in bright light and color vision
46
What are the photoreceptor cells responsible for detecting light in the retina?
Rods and cones
47
Which type of photoreceptor cells are responsible for color vision?
Cones
48
Which type of photoreceptor cells are responsible for low-light vision?
Rods
49
True or False: Rods are more sensitive to light than cones.
True
50
What pigment is found in rods that allows them to detect light?
Rhodopsin
51
What pigment is found in cones that allows for color vision?
Iodopsin
52
Which type of photoreceptor cells are more densely packed in the fovea?
Cones
53
Which type of photoreceptor cells are more abundant in the peripheral retina?
Rods
54
What is the function of rods in the visual system?
Detecting low levels of light
55
What is the function of cones in the visual system?
Detecting color and fine detail
56
What is the main neurotransmitter released by photoreceptor cells in response to light?
Glutamate
57
What is the ratio of rods to cones in the human retina?
Approximately 20:1
58
What is the name of the area in the retina with the highest concentration of cones?
Fovea
59
What part of the eye are rods and cones located in?
Retina
60
Which type of photoreceptor cells are responsible for providing detailed central vision?
Cones
61
Which type of photoreceptor cells are responsible for peripheral vision?
Rods
62
What is the primary function of rods in dim lighting conditions?
Detection of motion and shapes
63
What is the primary function of cones in bright lighting conditions?
Color perception and visual acuity
64
What is the shape of the outer segment of rods and cones?
Cylindrical
65
What is the shape of the inner segment of rods and cones?
Spherical
66
Which type of photoreceptor cells have a higher spatial density in the central retina?
Cones
67
Which type of photoreceptor cells have a higher spatial density in the peripheral retina?
Rods
68
What is the primary purpose of rods and cones in the visual system?
Converting light into neural signals
69
What is the main difference in function between rods and cones?
Rods function better in low light, while cones function better in bright light and color vision
70
What type of cells are ganglial cells in the retina?
Nerve cells
71
What is the function of ganglial cells in the retina?
They transmit visual information from the retina to the brain
72
What is the transparent path of the eye that allows light to enter?
Cornea
73
What is the name of the opening in the center of the iris that controls the amount of light entering the eye?
Pupil
74
Which structure in the eye focuses light onto the retina?
Lens
75
What is the layer of tissue at the back of the eye that contains the photoreceptor cells?
Retina
76
What are the two types of photoreceptor cells found in the retina?
Rods and cones
77
Which type of photoreceptor cells are responsible for vision in dim light?
Rods
78
Which type of photoreceptor cells are responsible for color vision?
Cones
79
What is the central area of the retina responsible for detailed central vision?
Macula
80
What is the small depression in the center of the macula that provides the sharpest vision?
Fovea
81
Which part of the eye converts light into electrical signals that are sent to the brain?
Retina
82
What is the transparent part of the eye that covers the iris and pupil?
Cornea
83
Which structure in the eye controls the amount of light entering through the pupil?
Iris
84
What is the purpose of the lens in the eye?
To focus light onto the retina
85
What is the function of the rods and cones in the retina?
To detect light and color
86
What is the area of the retina responsible for sharp central vision?
Fovea
87
What is the name of the layer of tissue at the back of the eye that contains photoreceptor cells?
Retina
88
What are the two types of photoreceptor cells in the retina?
Rods and cones
89
Which photoreceptor cells are responsible for vision in dim light?
Rods
90
Which photoreceptor cells are responsible for color vision?
Cones

Muscles In The Eyes (1 decks)

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