Visual System Pathways (2)

Question 1

What is optic radiation?

Answer 1

Axons from thalamus to visual cortex

Question 2

What does a temporal lobe lesion result in?

Answer 2

Contralateral homonymous superior quadrantanopia (affects inferior optic radiation)

Question 3

What does a parietal lobe lesion result in?

Answer 3

Contralateral homonymous inferior quadrantanopia (affects upper optic radiation)

Question 4

What is divergence?

Answer 4

Switching from looking at an object up close to one further away (pupil dilates)

Question 5

What is convergence?

Answer 5

Bring things closer into focus (pupil constricts)