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PHAR1803 > Anatomy of the Eye > Flashcards

Anatomy of the Eye Flashcards

1
Q

Where is aqueous humor produced?

A

Ciliary body

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2
Q

What other parts of the eye does the aqueous humor travel through?

A

Goes through the pupil into the anterior chamber

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3
Q

What is the function of the aqueous humor?

A

-Nourishes avascular cornea and lens
-Provides nutrients
-Removes waste

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4
Q

What is the aqueous humor absorbed into?

A

Scleralvenous sinus

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5
Q

What increases intraocular pressure?

A

-If too much aqueous humour is produced
-If too much aqueous humour is reabsorbed

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6
Q

What happens if too much aqueous humour is produced or if too much aqueous humour is reabsorbed?

A

Increase in intraocular pressure
Glaucoma

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7
Q

What is another word for increased intraocular pressure?

A

Glaucoma

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8
Q

What nourishes the avascular cornea and lens?

A

Aqueous humour

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9
Q

What provides nutrients and removes waste?

A

Aqueous Humour

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10
Q

What is the choroid made up of?

A

Made up of two blood vessels

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11
Q

What is the function of the choroid?

A

Provide blood supply to the sclera and retina

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12
Q

Where does the choroid supply blood to?

A

Sclera and retina

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13
Q

Which layer of the eye is the choroid a part of?

A

Vascular layer
Posterior

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14
Q

What is the ciliary body?

A

A thickening of the vascular layer

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15
Q

What is the ciliary body made of?

A

Blood vessels and smooth muscle

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16
Q

What two parts of the eye are attached by the ciliary body?

A

The choroid layer and the circumference of the iris

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17
Q

What attaches the choroid layer and the circumference of the iris?

A

Ciliary muscle

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18
Q

What does the internal surface of the ciliary body contain?

A

Ciliary projections

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19
Q

Where are the ciliary projections found?

A

The internal surface of the ciliary body

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20
Q

What are ciliary projections?

A

Attachments for the suspensory ligaments

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21
Q

What are the attachments for suspensory ligaments called?

A

Ciliary projections

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22
Q

What is the function of the ciliary projections?

A

Keep the lens in place

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23
Q

What is produced in the ciliary body?

A

Aqueous humour

24
Q

Which layer of the eye is the ciliary body a part of?

A

Vascular layer
Anterior

25
Q

What is the function of the iris?

A

-Responsible for eye colour
-Regulates the amount of light that passes through the pupil

26
Q

Where is the iris found?

A

The anterior surface of the lens
Vascular region

27
Q

Where is the retina found?

A

Inner layer
Beneath the vascular layer

28
Q

What are the two different parts of the retina called?

A

-Optical retina
-Non-visual retina

29
Q

Where is the optical retina found?

A

Right below the choroid layer

30
Q

What happens at the optical retina?

A

-It is where the light impacts and is detected by photoreceptors
-Can be used to analyse and detect abnormalities affecting the eye

31
Q

Where are the photoreceptors found?

A

Optical retina

32
Q

Where is the non-visual retina found?

A

-Underneath the optical retina
-Covers the ciliary body and posterior iris

33
Q

What is the non-visual retina?

A

-Not sensitive to light
-Blind spot

34
Q

Which part of the retina is used to analyse and detect abnormalities affecting the eye?

A

Optical retina

35
Q

What is used to examine the eye?

A

Opthalmoscope

36
Q

Where is the optic disk found?

A

Back of the retina

37
Q

What is the function of the optic disk?

A

-Exit for optic nerve and central retinal vein
-Entrance of central retinal artery and posterior region

38
Q

Is the optic disk a blind spot?

A

Yes
No photoreceptors

39
Q

Where is the macula found?

A

-Lateral to the optic disk
-Found in the back of the retina

40
Q

What does the macula contain?

A

Only cone cells

41
Q

What is the function of the macula?

A

Helps with acuity of vision
Prevents blurriness

42
Q

What is the central are of the macula called?

A

Fovea centralis

43
Q

Where is the fovea centralis found?

A

Centre of the macula

44
Q

Where is the most acute vision sensed?

A

Fovea centralis

45
Q

What is another name for the posterior segment?

A

Vitreous chamber

46
Q

What is another name for the vitreous chamber?

A

Posterior segment

47
Q

What dense fluid does the posterior segment contain?

A

Vitreous humour

48
Q

Where is vitreous humour found?

A

Vitreous chamber/Posterior segment

49
Q

What are the functions of the vitreous humour?

A

-Provides support to the lens
-Holds retina in place
-Transparent

50
Q

What is the function of the cornea?

A

Makes light rays converge through the pupil

51
Q

Does the curvature of the cornea change?

A

No

52
Q

What type of structure is the lens?

A

An elastic and biconcave structure

53
Q

Which surfaces of the eye are convex?

A

Both posterior and anterior segments

54
Q

What can be done to change a lens’s curvature?

A

Bulged or stretched

55
Q

What is the function of the lens?

A

Allows us to fine-tune our ability to focus

PHAR1803 (27 decks)

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