THRC.17 Flashcards

1
Q
A

Lens

with zonular fibres

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2
Q
A

Cornea

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3
Q
A

Pupil

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4
Q
A

Iris

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5
Q
A

Anterior chamber

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6
Q
A

Posterior chamber

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7
Q
A

Ciliary body

With:

  • Ciliary part of retina
  • Iridial part of retina
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8
Q
A

Vitreous layer

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9
Q
A

Optic nerve

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10
Q
A

Optical part of retina

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11
Q
A

Ciliary process

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12
Q
A

Ciliary body

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13
Q
A

Zonular fibres

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14
Q
A

Pupillary margin

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15
Q

The lens is suspended by…

A

Ciliary zonule

via zonulary fibres

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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
Q

Parasympathetic action of the eye triggers…

A
  • Constriction of the pupil
  • Contraction of the ciliary muscle
26
Q
A

Optic nerve

27
Q

Where is the visual cortex located?

A

Occipital lobe

28
Q
A

Optic chiasm

29
Q
A

Optic tract

30
Q
A

Optic thalamus

31
Q
A

Visual cortex

32
Q
A

Rostral colliculus

33
Q
A

Pituitary gland

34
Q

Give the pathway of the optic tract

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