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Sem 4 - Nervous System > Central Visual Pathway > Flashcards

Central Visual Pathway Flashcards

1
Q

What are the divisions of the field of vision?

A

Superior nasal
Superior temporal
Inferior nasal
Inferior temporal

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2
Q

What are the parts of the retina corresponding to the fields of vision?

A

Superior nasal
Superior temporal
Inferior nasal
Inferior temporal

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3
Q

Light from the superior nasal field of vision hits what part of the retina?

A

Inferior temporal

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4
Q

Light from the superior temporal field of vision hits what part of the retina?

A

Inferior nasal

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5
Q

Light from the inferior nasal field of vision hits what part of the retina?

A

Superior temporal

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6
Q

Light from the inferior temporal field of vision hits what part of the retina?

A

Superior nasal

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7
Q

What are the different groups of fibres in the optic nerve?

A

Superior nasal fibres
Superior temporal fibres
Inferior nasal fibres
Inferior temporal fibres

Based on the part of the retina that they carry impulses from

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8
Q

What happens to the nasal fibres in the visual pathway?

A

They decussate at the optic chiasm

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9
Q

What is the bundle of nerve fibres called after the optic chiasm?

A

Optic tract

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10
Q

What bundles of nerve fibres is the optic tract made up of?

A

Ipsilateral superior and inferior temporal fibres

Contralateral superior and inferior nasal fibres

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11
Q

Where does the optic tract end in the visual pathway?

A

Lateral geniculate nucleus

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12
Q

Where is the lateral geniculate nucleus located?

A

Thalamus

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13
Q

What arises from the lateral geniculate nucleus in the visual pathway?

A

Superior optic radiations

Inferior optic radiations

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14
Q

What bundles of nerve fibres are the superior optic radiations made up of?

A

Ipsilateral superior temporal fibre

Contralateral superior nasal fibres

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15
Q

What bundles of nerve fibres are the inferior optic radiations made up of?

A

Ipsilateral inferior temporal fibres

Contralateral inferior nasal fibres

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16
Q

Where are the superior optic radiations located?

A

Parietal lobe

17
Q

Where are the inferior optic radiations located?

A

Temporal lobe

18
Q

Where do the superior and inferior optic radiations end in the visual pathway?

A

Primary visual cortex

19
Q

Where is the primary visual cortex located?

A

Occipital lobe

Sem 4 - Nervous System (25 decks)

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