THRC.17 Flashcards by Oliver Woodroffe

Q

A

Lens

with zonular fibres

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Q

A

Cornea

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Q

A

Pupil

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Q

A

Iris

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Q

A

Anterior chamber

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Q

A

Posterior chamber

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Q

A

Ciliary body

With:

Ciliary part of retina
Iridial part of retina

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Q

A

Vitreous layer

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Q

A

Optic nerve

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Q

A

Optical part of retina

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Q

A

Ciliary process

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Q

A

Ciliary body

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Q

A

Zonular fibres

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Q

A

Pupillary margin

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Q

The lens is suspended by…

A

Ciliary zonule

via zonulary fibres

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Q

Give the structures of the lens

A

Lens capsule
Lens epithelium
Lens fibres
Lens nucleus

Q

Lens nucleus

A

Area where the lens fibres become more dense

Towards the centre

Q

Aqueous humour is found…

A

Posterior chamber
Anterior chamber

Q

Vitreous humour is found…

A

Vitreous body

Q

Which structure has the highest refractive index?

A

The lens

Q

Where do sympathetic and parasympathetic fibres of the iris and ciliary body come from?

A

Ciliary ganglion

Q

Postganglionic sympathetic fibres supply…

A

Dilator pupillae muscle
Ciliary processes

Q

Parasympathetic fibres in the eye arise from….

A

Oculomotor nerve

Q

Parasympathetic fibres in the eye supply…

A

Sphincter pupillae muscle
Ciliary muscle

Q

Parasympathetic action of the eye triggers…

A

Constriction of the pupil
Contraction of the ciliary muscle

Q

A

Optic nerve

Q

Where is the visual cortex located?

A

Occipital lobe

Q

A

Optic chiasm

Q

A

Optic tract

Q

A

Optic thalamus

Q

A

Visual cortex

Q

A

Rostral colliculus

Q

A

Pituitary gland

Q

Give the pathway of the optic tract

A

Eyes → Optic chiasm
Optic tract:
→ Optic thalamus
→ Rostral colliculus
Visual cortex → Rostral colliculus