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All Quiz Cards For Semester 2 Final Exams > Anatomy - The Special Senses - The Eye > Flashcards

Anatomy - The Special Senses - The Eye Flashcards

1
Q

What is the transparent outer layer of the eye called?

A

The cornea

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2
Q

What is the coloured part of the eye that regulates the amount of the light entering it?

A

The iris

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3
Q

What is the opening in centre of the iris know as?

A

The pupil

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4
Q

What muscles work when there is a lot of eye trying to enter into the pupil?

A

The circular smooth muscle

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5
Q

What eye muscle works when in a dark room?

A

The radial smooth muscle

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6
Q

What are the three layers of the visceral layer called?

A

The choroid, iris, and the ciliary body

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7
Q

Which is bigger?
The posterior chamber or the anterior chamber?

A

The anterior chamber

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8
Q

Where is the posterior chamber located?

A

Between the iris and the lens

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9
Q

Where is the anterior chamber located?

A

In front of the lens.

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10
Q

What happens to the zonular fibres when you are trying to see up close?

A

They become thick

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11
Q

Does that conjunctiva create fluid? If so, how much?

A

Yes and only a little bit.

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12
Q

What do the zonular fibres do when you are trying to see far away?

A

They become thin.

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13
Q

The nerve that carriers visual information to the brain is called?

A

The optic nerve.

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14
Q

What colour is the retina!?

A

It is transparent

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15
Q

The vascular layer between the retina and the sclera is called?

A

Choroid. The tapetum lucitum layer

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16
Q

What humour is connected to the lens?

A

The aqueous humour.

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17
Q

What are the eyelashes called?

A

Cillia

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18
Q

What does the tapetum lucitum allow for?

A

Night vision

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19
Q

What are the three layers of the eye?

A

Outer layer: fibrous layer. Made of collagen fibres.
Middle layer: vascular layer. Has three parts.
The inner layer: the nervous layer.

20
Q

What is the junction between the cornea and sclera called?
a. Limbus b. Choroid. c. Perilymph

A

The limbus

21
Q

True or false.
The vascular layer has no blood vessels.

A

False. They have a lot of blood vessels.

22
Q

True or false.
The nervous layer is only found at the back of the eye.

A

True

23
Q

Is the retina sensitive?

A

Yes

24
Q

True or false.
The lens is not transparent

A

False. The lens is transparent

25
Q

True or false.
The aqueous chamber is always flowing

A

True

26
Q

True or false.
The optic disc can create images

A

False

27
Q

What is special about the optic disc?

A

It has no rods or cones - therefore no image can be formed here. The blood vessels and the optic nerve come into the eye through here.

28
Q

True or false.
The fovea and macula can create images.

A

True

29
Q

What is true about the fovea and macula?

A

It has a high concentration of rods and cones. Provides accurate and clear vision.

30
Q

What is the optic disc known as?

A

The blind spot

31
Q

True or false.
The cones allow you to only see black and white

A

False. They allow you to see colour

32
Q

True or false.
The rods have no sensitivity to colour

A

True

33
Q

What are the two parts of the conjunctiva called?

A

The bulbar and the palpebral conjunctiva.

34
Q

What is the lacrimal gland known as?

A

The tear gland

35
Q

Where do the fluids from the eye drain? Why is it located on the bottom eyelid?

A

The lacrimal puncta. It is located on the bottom because it needs to connect to the lacrimal sac and nasolacrimal duct.

36
Q

Where are the meibomian glands located?

A

At the base of the eyelashes

37
Q

What are the components of the lacrimal apparatus?

A

Lacrimal glands, lacrimal puncta, lacrimal sac, and the nasolacrimal duct.

38
Q

What do meibonmian glands produce?

A

They produce oil and sebum.

39
Q

What is the function of the meibomian glands?

A

Keep the tears from evaporating and/or falling out.

40
Q

What kind of glands are meibomian glands?
A) merocrine. B) apocrine. C) holocrine

A

C) halocrine

41
Q

What type of glands are the lacrimal glands?
A) merocrine. B) apocrine. C) holocrine

A

A) merocrine

42
Q

What is conjunctivitis commonly caused from?

A

Bacteria.

43
Q

What is the colour of the eye known as?

A

The choroid.

44
Q

Where is the vitreous humor?

A

Between the lens and the retina.

45
Q

What kind of substance is the vitreous humor?

A

Gel-like substance.

All Quiz Cards For Semester 2 Final Exams (5 decks)

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