Visual System

Question 1

The optic nerve is formed by — — — axons

Answer 1

The optic nerve is formed by retinal ganglion cell axons

Question 2

Light travels through the pupil to the back of the eye where the —- is

Answer 2

Light travels through the pupil to the back of the eye where the retina

Question 3

bipolar, horizontal & amacrine cells

Answer 3

Inner Nuclear Layer

Question 4

tf INL is b/n IPL amd OPL

Answer 4

T

Question 5

Ganglion cell axons

Answer 5

form optic n.

Question 6

metabolically supports photoreceptors - absorbs stray light particles

Answer 6

RPE

Question 7

cell bodies of rods and cones

Answer 7

Outer Nuclear Layer

Question 8

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Question 11

Answer 11

Question 12

anatomical and physiologic properties

Answer 12

group ganglion cells

Question 13

M (or Y) ganglion cells

Answer 13

largest of the ganglion cells

Question 14

extensive dendritic arbors and large receptive fields

Answer 14

M (or Y) ganglion cells

Question 15

M or Y ganglion cells are predominantly found in the —– of the retina and mainly receive input from —

Answer 15

M or Y ganglion cells are predominantly found in the periphery of the retina and mainly receive input from rods

Question 16

P (or X ) ganglion cells

Answer 16

central retina

Question 17

input from cones

Answer 17

P (or X ) ganglion cells

Question 18

P (or X ) ganglion cells

Answer 18

smaller gang cells

Question 19

small dendritic arbors and small receptive fields

Answer 19

smaller, P (or X ) ganglion cells

Question 20

variety of receptive field sizes and physiologic responses.

Answer 20

W cells (gang cells)

Question 21

The optic nerve exits the orbit, traverses the —– canal and emerges into the —- cranial fossa

Answer 21

The optic nerve exits the orbit, traverses the optic canal and emerges into the middle cranial fossa

Question 22

Optic Nerves

Answer 22

(axons of retinal ganglion cells)

Question 23

goes to left temporal eye

Answer 23

nasal right visual field

Question 24

goes 2 R temporal eye

Answer 24

Left nasal visual field

Question 25

LGN to V1

Answer 25

optic radiation

Question 26

tf optic chiasm to only lateral geniculate nucleus (LGN)

Answer 26

f also goes to superior colliculus and pretectum

Question 27

Area of overlap of the two visual fields (purple)

Answer 27

binocular vision

Question 28

partial crossing

Answer 28

visual information from the left visual field is conveyed in the right optic tract

Question 29

right visual fields

Answer 29

use the left LGN

Question 30

Left optic ract

Answer 30

used by right visual field

Question 31

Area 17

Answer 31

Primary Visual Cortex

Question 32

6 layers

Answer 32

LGN

Question 33

large cells;

eceive information about movement and contrast from M-cells

Answer 33

Magnocellular layers

Question 34

1 and 2 of LGN

Answer 34

•Magnocellular layers

Question 35

Parvocellular layers

Answer 35

small cells;

receive information about form and color from P-cell

Question 36

3-6 of LGN

Answer 36

Parvocellular layers

Question 37

Optic tract fibers are segregated by eye in the

Answer 37

LGN

Question 38

— LGN layers receive fibers from the —— eye and — layers receive fibers from the —— eye

Answer 38

Three LGN layers receive fibers from the contralateral eye and 3 layers receive fibers from the ipsilateral eye

Question 39

the upper visual field contribute to the —- optic radiations, and terminate in the —- aspect of V1

Answer 39

the upper visual field contribute to the inferior optic radiations, and terminate in the inferior aspect of V1

Question 40

calvarian fissure

Answer 40

separates upper and lower visual field of V1