eye histology Flashcards

1
Q

3 concentric layers of the eye?

A
  • fibrous layer (outer)
  • — Sclera
  • — Cornea
  • vascular layer (middle)
  • — Iris
  • — Ciliary body
  • — Choroid

Photoreceptive tunic:
- retina (inner)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

fibrous layer (outer) layer consists of..?

A

sclera & cornea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

vascular layer (middle) consists of..?

A
  • choroid
  • ciliary body
  • iris
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

retina consists of..?

A
  • pigmented layer = outer layer
  • neural layer = inner layer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

pigmented layer of retina contains..?

A
  • no photoreceptors
  • stores vitamin A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

neural layer of retina contains..?

A
  • photoreceptors
  • bipolar cells
  • ganglion cells
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

lamina choriocapillaris is what..?

A

layer of capillaries that is immediately adjacent to Bruch’s membrane in the choroid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Bruch’s membrane is part of what?

A

innermost layer of choroid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

vitreous lamina aka?

A

Bruch’s membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

choroid is the X layer..?

A

vascular layer of the eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

choroid contains?

A

connective tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

choroid lies btw. X & Y?

A

retina & sclera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

choroid layer of the eye func.?

A
  • provides oxygen & nourishment to outer layers of the retina
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

uveal tract components (3)

A
  • ciliary body
  • iris
  • choroid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

4 layers of the choroid:

A
  • Haller’s layer
  • Sattler’s layer
  • Choriocapillaris
  • Bruch’s membrane
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

optic N.

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

fovea

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

optic papilla

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

dura mater of optic N.

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

vitreous body

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

sclera

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

lens

A
23
Q

ora serrata is..?

A

serrated junction btwe. retina & ciliary body

24
Q

ora serrata

A
25
Q

ant. chamber

A
26
Q

post. chamber

A
27
Q

ciliary proc.

A
28
Q

ciliary proc 2

A
29
Q

ciliary musc.

A
30
Q

iris

A
31
Q

limbus

A
32
Q

Refractile media

A
  • *- Cornea**
  • Anterior and posterior chambers which contain aqueous humor
  • *- Lens**
  • Vitreous space which contains vitreous humor
33
Q

Cornea characteristics

A
  • NONvascular
  • Colorless
  • Clear
34
Q

Layer of cornea

A
  • Corneal epithelium
  • Bowman’s membrane
  • Stroma
  • Descemet’s membrane
  • Corneal endothelium
35
Q

Corneal epithelium

A
  • Nonkeratinized stratified squamous epithelium
  • 5-6 cells thick
  • Continuous with bulbar conjunctival epithelium
    (1)
36
Q

Cornea

A
  1. Epithelium
  2. Stroma
  3. Endothelium
37
Q

Cornea layers

A
38
Q

Cornea layers

A

Anterior –> Posterior

39
Q

Sclera characteristics

A
  • Gray-white appearance
  • Optic nerve exits posteriorly at lamina cibrosa (sclera reduced to fenestrated membrane)
  • Site of attachment of rectus and oblique muscles
40
Q

Sclera anteriorly covered by?

A

Bulbar conjunctiva.

41
Q

Choroid

A
  • Highly vascularized
  • Loose CT rich in fibroblasts, macrophages, lymphocytes, mast cells, plasma cells, melanocytes
  • Elastic fibers b/w blood vessels
42
Q

Lens components

A
  • Lens capsule
  • Subcapsular epithelium
  • Fiber cells
43
Q

Lens capsule

A
  • Basement membrane
  • Consists of type Iv collagen, glycoproteins, heparan sulfate proteoglycan
44
Q

Lens

A
45
Q

Photoreceptive tunic

A

Inner layer

46
Q

Posterior portion of retina is?

A

Photosensitive.

47
Q

Anterior portion of retina

A

Constitutes ciliary body and back part of iris

48
Q

10 layers of retina

A
  1. Pigment epithelium
  2. Photoreceptor layer
  3. Outer limiting membrane
  4. Outer nuclear layer
  5. Outer plexiform layer
  6. Inner nuclear layer
  7. Inner plexiform layer
  8. Ganglion cell layer
  9. Nerve fiber layer
  10. Inner limiting membrane
49
Q

Pigment epithelium

A
  • Columnar cells
  • Bruch’s membrane converts trans-retinol to retinal, important for rhodopsin synthesis
50
Q

Organ of corti

A
51
Q

Organ of corti histology

A
52
Q

layers of retina

A

Membrane (internal limiting)
Nerve fibers
Ganglions
Inner plexiform
Inner nuclear
Outer plexiform
Outer nuclear
External limiting membrane
Photoreceptors
Retinal pigment epithelium

Mnemonic:
My Nerves Get In Knots Outside Our Easy Practice Review

53
Q
A