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Muscles In The Eyes > Muscles In The Eyes > Flashcards

Muscles In The Eyes Flashcards

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
Q

True or False: Rods are more sensitive to light than cones.

A

True

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26
Q

What pigment is found in rods that allows them to detect light?

A

Rhodopsin

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27
Q

What pigment is found in cones that allows for color vision?

A

Iodopsin

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28
Q

Which type of photoreceptor cells are more densely packed in the fovea?

A

Cones

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29
Q

Which type of photoreceptor cells are more abundant in the peripheral retina?

A

Rods

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30
Q

What is the function of rods in the visual system?

A

Detecting low levels of light

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31
Q

What is the function of cones in the visual system?

A

Detecting color and fine detail

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32
Q

What is the main neurotransmitter released by photoreceptor cells in response to light?

A

Glutamate

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33
Q

What is the ratio of rods to cones in the human retina?

A

Approximately 20:1

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34
Q

What is the name of the area in the retina with the highest concentration of cones?

A

Fovea

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35
Q

What part of the eye are rods and cones located in?

A

Retina

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36
Q

Which type of photoreceptor cells are responsible for providing detailed central vision?

A

Cones

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37
Q

Which type of photoreceptor cells are responsible for peripheral vision?

A

Rods

38
Q

What is the primary function of rods in dim lighting conditions?

A

Detection of motion and shapes

39
Q

What is the primary function of cones in bright lighting conditions?

A

Color perception and visual acuity

40
Q

What is the shape of the outer segment of rods and cones?

A

Cylindrical

41
Q

What is the shape of the inner segment of rods and cones?

A

Spherical

42
Q

Which type of photoreceptor cells have a higher spatial density in the central retina?

A

Cones

43
Q

Which type of photoreceptor cells have a higher spatial density in the peripheral retina?

A

Rods

44
Q

What is the primary purpose of rods and cones in the visual system?

A

Converting light into neural signals

45
Q

What is the main difference in function between rods and cones?

A

Rods function better in low light, while cones function better in bright light and color vision

46
Q

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

A

Rods and cones

47
Q

Which type of photoreceptor cells are responsible for color vision?

A

Cones

48
Q

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

A

Rods

49
Q

True or False: Rods are more sensitive to light than cones.

A

True

50
Q

What pigment is found in rods that allows them to detect light?

A

Rhodopsin

51
Q

What pigment is found in cones that allows for color vision?

A

Iodopsin

52
Q

Which type of photoreceptor cells are more densely packed in the fovea?

A

Cones

53
Q

Which type of photoreceptor cells are more abundant in the peripheral retina?

A

Rods

54
Q

What is the function of rods in the visual system?

A

Detecting low levels of light

55
Q

What is the function of cones in the visual system?

A

Detecting color and fine detail

56
Q

What is the main neurotransmitter released by photoreceptor cells in response to light?

A

Glutamate

57
Q

What is the ratio of rods to cones in the human retina?

A

Approximately 20:1

58
Q

What is the name of the area in the retina with the highest concentration of cones?

A

Fovea

59
Q

What part of the eye are rods and cones located in?

A

Retina

60
Q

Which type of photoreceptor cells are responsible for providing detailed central vision?

A

Cones

61
Q

Which type of photoreceptor cells are responsible for peripheral vision?

A

Rods

62
Q

What is the primary function of rods in dim lighting conditions?

A

Detection of motion and shapes

63
Q

What is the primary function of cones in bright lighting conditions?

A

Color perception and visual acuity

64
Q

What is the shape of the outer segment of rods and cones?

A

Cylindrical

65
Q

What is the shape of the inner segment of rods and cones?

A

Spherical

66
Q

Which type of photoreceptor cells have a higher spatial density in the central retina?

A

Cones

67
Q

Which type of photoreceptor cells have a higher spatial density in the peripheral retina?

A

Rods

68
Q

What is the primary purpose of rods and cones in the visual system?

A

Converting light into neural signals

69
Q

What is the main difference in function between rods and cones?

A

Rods function better in low light, while cones function better in bright light and color vision

70
Q

What type of cells are ganglial cells in the retina?

A

Nerve cells

71
Q

What is the function of ganglial cells in the retina?

A

They transmit visual information from the retina to the brain

72
Q

What is the transparent path of the eye that allows light to enter?

A

Cornea

73
Q

What is the name of the opening in the center of the iris that controls the amount of light entering the eye?

A

Pupil

74
Q

Which structure in the eye focuses light onto the retina?

A

Lens

75
Q

What is the layer of tissue at the back of the eye that contains the photoreceptor cells?

A

Retina

76
Q

What are the two types of photoreceptor cells found in the retina?

A

Rods and cones

77
Q

Which type of photoreceptor cells are responsible for vision in dim light?

A

Rods

78
Q

Which type of photoreceptor cells are responsible for color vision?

A

Cones

79
Q

What is the central area of the retina responsible for detailed central vision?

A

Macula

80
Q

What is the small depression in the center of the macula that provides the sharpest vision?

A

Fovea

81
Q

Which part of the eye converts light into electrical signals that are sent to the brain?

A

Retina

82
Q

What is the transparent part of the eye that covers the iris and pupil?

A

Cornea

83
Q

Which structure in the eye controls the amount of light entering through the pupil?

A

Iris

84
Q

What is the purpose of the lens in the eye?

A

To focus light onto the retina

85
Q

What is the function of the rods and cones in the retina?

A

To detect light and color

86
Q

What is the area of the retina responsible for sharp central vision?

A

Fovea

87
Q

What is the name of the layer of tissue at the back of the eye that contains photoreceptor cells?

A

Retina

88
Q

What are the two types of photoreceptor cells in the retina?

A

Rods and cones

89
Q

Which photoreceptor cells are responsible for vision in dim light?

A

Rods

90
Q

Which photoreceptor cells are responsible for color vision?

A

Cones

Muscles In The Eyes (1 decks)

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