Youtube

Question 1

Fibrous layer of the eye are

Answer 1

Sclera

Cornea

Question 2

Sclera has 3 layers that are

Clinical relevance?

Answer 2

Episclera - dense irregular fibrous connective tissue
Sclera proper- collagen
Lamina Fusca- pigmented layer

Jaudice/bilirubin accumluation —> Gilbert syndrom

Question 3

Cornea has 5 layer that are - avascular and no immune cells

Answer 3

1. Epithelial layer- nociceptive layer
2. Bowmans membrane
3. Stromal layer
4. Descmets membrane
5. Endothelial layer- blood supply to get nutritions

Question 4

Vascular tunics of the eye are

Answer 4

1. Choroid
2. Ciliary body
3. Iris

Question 5

Iris is made up of 2 muscles

Answer 5

1. Dilator pupillae —> sympathetic
2. Sphicter pupillae –> parasympathtic
3. Pigmentation of the eye –>

Question 6

Ciliaris the big muscle is under influenced of

Answer 6

PSNS
SNS
Changes the shape of the lens when eye is contracted or dilated –> accommodation–> close and distant vision

Question 7

Ciliary process is a small layer of

Answer 7

epithelial cells that screte aqueous humus (kammarvätska)

Question 8

Choroid has following layers

Answer 8

pigmented layer absorbing light rays to prevent reflection and scattering of light that can disturb the vision.

Vascular layer to provide nutrition to the eye

Question 9

Lens is composed of 2 components

Answer 9

Lens fibers that has crystallin proteins
Lens epithelial cells

• to focus light on the retina for close and distant vision

Question 10

Vitreous humur functions are

Answer 10

• transmitting the light rays
• holds retina in the place
• contribute to intraocular pressuree

Question 11

Retina’s neuronal layers has

Answer 11

photoreceptors (rods, cons) 
ganglionic cells 
bipolar neurons 
horizontal cells 
Amecrine

Question 12

Retina’s outer pigmented cells are made up of

Answer 12

epithelial cells that are rich in melanin to prevent

Question 13

palpabrae is layered by

Answer 13

conjuctiva and bacterias or viruses can invade and caise conjuctivitis

Question 14

Tarsal plate of palpabrae has attached to itself 2 muscles and glands

Answer 14

orbicularis muscle
levator palpabrae muscles

tarsal glands that produces sebum to keep moisture

Question 15

Lacrimal flow

Answer 15

1. Lacrimal gland secretes fluid
2. Moves across cornea medially
3. Moves into lacrimal puncta
4. Lacrimal canaliculi
5. Lacrimal sac
6. Nasolacrimal duct
7. Inferior meatus