THRC.17 Flashcards
1
Q
A
Lens
with zonular fibres
2
Q
A
Cornea
3
Q
A
Pupil
4
Q
A
Iris
5
Q
A
Anterior chamber
6
Q
A
Posterior chamber
7
Q
A
Ciliary body
With:
- Ciliary part of retina
- Iridial part of retina
8
Q
A
Vitreous layer
9
Q
A
Optic nerve
10
Q
A
Optical part of retina
11
Q
A
Ciliary process
12
Q
A
Ciliary body
13
Q
A
Zonular fibres
14
Q
A
Pupillary margin
15
Q
The lens is suspended by…
A
Ciliary zonule
via zonulary fibres
16
Q
Give the structures of the lens
A
- Lens capsule
- Lens epithelium
- Lens fibres
- Lens nucleus
17
Q
Lens nucleus
A
Area where the lens fibres become more dense
Towards the centre
18
Q
Aqueous humour is found…
A
- Posterior chamber
- Anterior chamber
19
Q
Vitreous humour is found…
A
- Vitreous body
20
Q
Which structure has the highest refractive index?
A
The lens
21
Q
Where do sympathetic and parasympathetic fibres of the iris and ciliary body come from?
A
Ciliary ganglion
22
Q
Postganglionic sympathetic fibres supply…
A
- Dilator pupillae muscle
- Ciliary processes
23
Q
Parasympathetic fibres in the eye arise from….
A
Oculomotor nerve
24
Q
Parasympathetic fibres in the eye supply…
A
- Sphincter pupillae muscle
- Ciliary muscle
25
Parasympathetic action of the eye triggers...
* Constriction of the pupil
* Contraction of the ciliary muscle
26
Optic nerve
27
Where is the visual cortex located?
Occipital lobe
28
Optic chiasm
29
Optic tract
30
Optic thalamus
31
Visual cortex
32
Rostral colliculus
33
Pituitary gland
34
Give the pathway of the optic tract
* Eyes → Optic chiasm
* Optic tract:
* → Optic thalamus
* → Rostral colliculus
* Visual cortex → Rostral colliculus
