048 Vision - Central Vision Pathways

Question 1

What is panum’s zone of fusion?

Answer 1

This is the zone beyond and before the fixation plane that allows both eyes to fuse information into a single image.

Question 2

Where do binocular cells arise and what is their function?

Answer 2

Binocular cells arise from layer 4 of V1 and these are responsible for allowing binocular single vision.

Question 3

What is layer 3 of V1 responsible for?

Answer 3

Determining the depth of the panum’s zones.

Question 4

Which layers of the LGN receive ipsilateral input?

Answer 4

2,3,5

Question 5

Which layers of the LGN receive contralateral input?

Answer 5

1,4,6

Question 6

Which layers do M type ganglion cells project on the lateral geniculate nucleus?

Answer 6

Layers 1 and 2

Question 7

Which layers do P type ganglion cells project on the lateral geniculate nucleus?

Answer 7

Layers 3,4,5,6

Question 8

Which ganglion cells terminate on layer IVCa in V1?

Answer 8

Magnocellular ganglion cells

Question 9

Which layer of V1 do P cells terminate on?

Answer 9

Layer IVCb

Question 10

Which layers of V1 do K cells terminate on?

Answer 10

Layer II and III