Eye Lesions and Brainstem Lesions

Question 1

Name the visual field pathway parts:

Answer 1

Retina
Optic nerve
Optic chiasm
Optic tract
LGN
Meyer's loop
Dorsal optic radiation
Occipital lobe

Question 2

Which is in the parietal and which is in the temporal lobe (Meyer’s vs Dorsal optic radiation)?

Answer 2

Meyer’s is in the temporal

“Mey what a nice temperature today. Might make a mey in the ski.”

Question 3

What location is a lesion making a bitemporal hemianopia?

Answer 3

Optic chiasm

Question 4

Where is the optic chiasm?

Answer 4

Pituitary

Question 5

What location is a lesion that makes a L homonymous hemianopia?

Answer 5

R optic tract

Question 6

What’s the order of lateral and medial on the diagram?

Answer 6

L M

Question 7

What are the arteries in the first vertical column?

Answer 7

PCA
AICA
PICA

Question 8

What are the arteries in the second vertical column?

Answer 8

PCA
Basilar
ASA

Question 9

What’s the order of the brainstem top to bottom?

Answer 9

Midbrain
Pons
Medulla

Question 10

What 2 CN’s are in the midbrain?

Answer 10

3

4

Question 11

What CN’s are in the pons?

Answer 11

6 5,7,8

Question 12

What CN’s are in the medulla?

Answer 12

12 9,10,11

Question 13

What does CN 12 do?

Answer 13

Tongue movements