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Neuro SP 2020 - Week 9 > CN II Optic > Flashcards

CN II Optic Flashcards

1
Q

What special sensory?

A

Visual perception

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2
Q

T/F

The CN II Optic nerve is the largest of the cranial nerves?

A

T

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3
Q

How are images projected on the retina?

A

Upside down

In reverse

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4
Q

What is the right visual field?

A

Projects to left primary visual cortex

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5
Q

What is the left visual field?

A

Projects to right primary visual cortex

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6
Q

What is the superior visual field?

A

Projects to the primary visual cortex on the lower bank of the calcarine fissure

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7
Q

What is the inferior visual field?

A

Projects to the primary visual cortex on the upper bank of the calcarine fissure

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8
Q

The optic nerve carries information from?

A

One eye to the optic chiasm

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9
Q

The optic chasim crosses the?

A

visual field information

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10
Q

The optic chasim axons from nasal hemiretina (medial side of retina closest to the nose) do what?

A

Decussate

-Lateral visual field information

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11
Q

The optic chasim axons from the temporal hemiretina (lateral side of retina closest to the temples) remain?

A

Ipsilateral

-Medial visual field information

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12
Q

The optic tract axons of neurons carrying contralateral visual field information from the?

A

Optic chaism to lateral geniculate nucleus of the thalamus

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13
Q

The optic tract visual information also travels to?

A

Superior colliculus and hypothalamus

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14
Q

What is the superior colliculus for?

A

coordination of head and eye movements, arousal and attention

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15
Q

What is the hypothalamus for?

A

To entrain the bodys clock

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16
Q

The optic radiations axons form the lateral geniculate nucleus of the thalamus to the?

A

primary visual cortex in the occipital lobe

17
Q

What are the 2 optic radiations?

A

superior optic radiation

inferior optic radiation

18
Q

The inferior optic radiation axons carrying information from the?

A

Superior visual fields travel in the inferior optic radiations through the temporal lobe

19
Q

The inferior optic radiation prior to heading posteriorly to the primary visual cortex on the?

A

Lower/inferior bank of the calcarine fissure.

20
Q

The superior optic radiation fibers carrying information form the?

A

Inferior visual fields travel in the superior optic radiations through the parietal lobe

21
Q

The superior optic radiation after the parietal lobe sends information to the?

A

Primary visual cortex on the upper/superior bank of the calcarine fissure.

Neuro SP 2020 - Week 9 (20 decks)

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