Anatomy of the eye

Question 1

Name of the area where the cornea and sclera meet

Answer 1

Cornoscleral junction aka the limbus

Question 2

What lines the 4 walls of the orbit?

Answer 2

Periosteum

Question 3

What are the layers of the eyelids?

Answer 3

1 Skin
2 Subcutaneous tissue
3 Obicularis oculi
4 Orbital Septum and tarsal plates
5 Smooth muscle
6 Conjunctiva

Question 4

What are the tarsal plates made of?

Answer 4

Dense connective tissue

Question 5

What is contained in the tarsal plates?

Answer 5

The meibomian glands

Question 6

What are the layers of the sclera?

Answer 6

1 Episclera
2 Stroma
3 Lamina fusca

Question 7

What’s the function of the sclera?

Answer 7

The sclera is a site of attachment for the extra-ocular muscles of the eye

Question 8

What are the ‘parts’of the conjunctiva?

Answer 8

1. The palpebral conjunctiva which lines the cornea

2. The bulbar conjunctiva which lines the sclera

Question 9

What are the layers of the cornea?

Answer 9

1 Epithelium
2 Bowmans layer
3 Stroma
4 Descemets membrane
5 The endothelium

Question 10

What is the function of the cornea?

Answer 10

To refract light entering the eye

Question 11

What does the spiral of tilaux do?

Answer 11

Describes how far from the limbus each muscle from the rectus inserts on the sclera

Question 12

Where is the anterior chamber?

Answer 12

Its in the Space between the cornea and the iris

Question 13

Where is the posterior chamber?

Answer 13

Its in the space between the posterior surface of the iris and the retina

Question 14

What are the parts of the lens?

Answer 14

1 Elastic capsule
2 Lens epithelium
3 Lens fibres

Question 15

What keeps the lens suspended?

Answer 15

the zonules

Question 16

Function of the lens?

Answer 16

Takes part in refracting mechanism of the eye

Question 17

What is the cliliary body made of?

Answer 17

Ciliary epithelium and ciliary muscle

Question 18

What does the ciliary epithelium do?

Answer 18

Produces aques humor

Question 19

What does the ciliary body do?

Answer 19

Plays a role in accomodation

Question 20

What is the function of the choroid?

Answer 20

It transmits arteries from the back of the eye to the front

Question 21

What is the nervous layer of the eye?

Answer 21

The retina

Question 22

Whats the dual blood supply of the retina?

Answer 22

Centra retinal artery and the choroidal circulation

Question 23

Where is the highest concentration of cones?

Answer 23

The fovea

Question 24

Where is the ‘blind spot’?

Answer 24

Its at the optic disk where there are no rods and cones

Question 25

How many extra-ocular muscles do we have

Answer 25

6

Medial rectus,lateral rectus, superior oblique, inferior oblique,superior rectus and inferior rectus