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ANAT2010 > Visual System > Flashcards

Visual System Flashcards

1
Q

What is the function of the lamina cribrosa?

A

Prevents optic nerve myelin extending into retina

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2
Q

What is the function of the fovea?

A

Highest visual discrimination

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3
Q

What is the function of magnocellular RGCs?

A

Achromatic - detect spatial opponency
Large receptive fields
Motion-selective - fast adapting

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4
Q

What is the function of parvocellular RGCs?

A

Chromatic - spatial and chromatic opponency
Small receptive fields
Motion non-selective - slow adapting

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5
Q

What is the function of the suprachiasmatic nucleus?

A

Processes light/dark inputs - regulates circadian rhythms

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6
Q

What is the function of blobs in layer 3 of V1?

A

Colour input

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7
Q

What is the function of interblob regions in layer 3 of V1?

A

Achromatic input

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8
Q

What is the function of the dorsal visual cortex processing stream?

A

‘Where’ pathway

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9
Q

What is the function of the ventral visual cortex processing stream?

A

‘What’ pathway - colour and complex visual patterns

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ANAT2010 (21 decks)

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