THRC.17 Flashcards
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Lens
with zonular fibres
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Cornea
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Pupil
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Iris
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Anterior chamber
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Posterior chamber
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Ciliary body
With:
- Ciliary part of retina
- Iridial part of retina
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Vitreous layer
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Optic nerve
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Optical part of retina
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Ciliary process
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Ciliary body
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Zonular fibres
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Pupillary margin
The lens is suspended by…
Ciliary zonule
via zonulary fibres
Give the structures of the lens
- Lens capsule
- Lens epithelium
- Lens fibres
- Lens nucleus
Lens nucleus
Area where the lens fibres become more dense
Towards the centre
Aqueous humour is found…
- Posterior chamber
- Anterior chamber
Vitreous humour is found…
- Vitreous body
Which structure has the highest refractive index?
The lens
Where do sympathetic and parasympathetic fibres of the iris and ciliary body come from?
Ciliary ganglion
Postganglionic sympathetic fibres supply…
- Dilator pupillae muscle
- Ciliary processes
Parasympathetic fibres in the eye arise from….
Oculomotor nerve
Parasympathetic fibres in the eye supply…
- Sphincter pupillae muscle
- Ciliary muscle
Parasympathetic action of the eye triggers…
- Constriction of the pupil
- Contraction of the ciliary muscle
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Optic nerve
Where is the visual cortex located?
Occipital lobe
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Optic chiasm
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Optic tract
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Optic thalamus
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Visual cortex
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Rostral colliculus
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Pituitary gland
Give the pathway of the optic tract
- Eyes → Optic chiasm
- Optic tract:
- → Optic thalamus
- → Rostral colliculus
- Visual cortex → Rostral colliculus