Anatomy

Question 1

name for the centre of the retina?

Answer 1

macula

Question 2

what does the macula contain

Answer 2

fovea

Question 3

what is the fovea responsible for

Answer 3

high visual acuity

Question 4

what are rod cells for

Answer 4

night vision

Question 5

what are cone cells for

Answer 5

colour vision

Question 6

what does the fibrous layer of the eye consist of?

Answer 6

sclera + cornea

Question 7

what does the vascular layer of the eye consist of?

Answer 7

• choroid
• ciliary body
• iris

Question 8

what are the 2 layers of the retina

Answer 8

• pigmented layer

- neural layer

Question 9

what is the optic disc?

Answer 9

the area where the optic nerve enters the retina

Question 10

what is lens located between?

Answer 10

vitreous humor + pupil

Question 11

what is the anterior chamber between?

Answer 11

cornea + iris

Question 12

what is the posterior chamber between?

Answer 12

iris + ciliary processes

Question 13

first branch of the internal carotid artery is?

Answer 13

ophthalmic artery

Question 14

which blood vessel gives off branches which supply the optic nerve?

Answer 14

central retinal artery

Question 15

what produces aqueous humor?

Answer 15

ciliary body

Question 16

retina consists of what layers?

Answer 16

inner & outer plexiform layer

Question 17

what photoreceptors does the retina consist of?

Answer 17

rodes & cones;

these photoreceptors convert light into electrical signals

Question 18

how many layers does the retina consist of

Answer 18

10

Question 19

what fibres is the cornea composed of?

Answer 19

regular arranged collagen fibres

Question 20

how many layers does cornea consist of?

Answer 20

5

Question 21

where does the cornea derive its life from

Answer 21

it is avascular & derives oxygen from tear film & aqueous

Question 22

how many extra ocular muscles are there

Answer 22

6