Layers Flashcards

(35 cards)

1
Q

What are the three main layers of the eye globe?

A

Fibrous, vascular and neural

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2
Q

True or False: The sclera is the innermost layer of the eye.

A

False.

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3
Q

Fill in the blank: The __________ is the transparent front part of the eye that covers the iris and pupil.

A

cornea

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4
Q

What is the primary function of the sclera?

A

To provide structural support and protection for the eye.

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5
Q

Multiple choice: Which layer of the eye contains blood vessels and provides nutrients to the retina? A) Sclera B) Choroid C) Retina

A

B) Choroid

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6
Q

What is the outermost layer of the eye globe?

A

The sclera.

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7
Q

True or False: The retina contains photoreceptor cells.

A

True.

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8
Q

Fill in the blank: The __________ is responsible for converting light into neural signals.

A

retina

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9
Q

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

A

Rods and cones.

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10
Q

Multiple choice: Which layer of the eye is primarily responsible for the eye’s shape? A) Sclera B) Choroid C) Retina

A

A) Sclera

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11
Q

What is the role of the choroid layer?

A

To supply oxygen and nutrients to the retina and absorb excess light.

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12
Q

True or False: The retina is involved in the process of accommodation.

A

False.

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13
Q

Fill in the blank: The __________ is a layer that contains melanin to help absorb light.

A

choroid

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14
Q

What is the fovea centralis?

A

A small pit in the retina that provides the clearest vision.

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15
Q

Multiple choice: Which layer of the eye is the thickest? A) Sclera B) Choroid C) Retina

A

A) Sclera

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16
Q

True or False: The cornea is avascular.

17
Q

What is the primary purpose of the cornea?

A

To refract light entering the eye.

18
Q

Fill in the blank: The __________ is the area where the optic nerve exits the eye.

19
Q

What is the significance of the macula?

A

It is responsible for central vision and color perception.

20
Q

Multiple choice: Which of the following is NOT a function of the choroid? A) Nutrient supply B) Light absorption C) Vision processing

A

C) Vision processing

21
Q

True or False: The retina is composed of multiple layers of neurons.

22
Q

What does the term ‘retinal detachment’ refer to?

A

A medical condition where the retina separates from the underlying choroid layer.

23
Q

Fill in the blank: The __________ connects the eye to the brain.

24
Q

What is the role of the ciliary body?

A

To control lens shape and produce aqueous humor.

25
Multiple choice: The layers of the eye can be categorized into which two groups? A) Inner and outer B) Anterior and posterior C) Vascular and avascular
A) Inner and outer
26
True or False: The iris is part of the scleral layer.
False.
27
What is the function of the aqueous humor?
To maintain intraocular pressure and provide nutrients to the avascular structures of the eye.
28
Fill in the blank: The __________ is the colored part of the eye that regulates the size of the pupil.
iris
29
What is the role of the vitreous body?
To maintain the shape of the eye and provide a medium for light to pass through.
30
Multiple choice: Which layer of the eye is involved in the immune response? A) Sclera B) Choroid C) Retina
B) Choroid
31
True or False: The retina has no capacity for regeneration.
True.
32
What is the primary function of the lens?
To focus light onto the retina.
33
Fill in the blank: The __________ is the clear gel that fills the space between the lens and the retina.
vitreous humor
34
What is the function of the zonules of Zinn?
To connect the ciliary body to the lens.
35
Multiple choice: Which layer of the eye contains the majority of the eye's blood supply? A) Sclera B) Choroid C) Retina
B) Choroid