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Question 19N.3.HL.TZ0.d

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Date November 2019 Marks available [Maximum mark: 3] Reference code 19N.3.HL.TZ0.d
Level HL Paper 3 Time zone TZ0
Command term Explain Question number d Adapted from N/A
d.
[Maximum mark: 3]
19N.3.HL.TZ0.d

Explain, using the diagram, how the visual stimuli from the right eye reach the visual cortex of the brain.

[3]

Markscheme

a. «right» eye receives information/stimuli/light from both «left and right» visual fields ✔

b. light from the left visual field goes to the right side of the retina ✔ Accept vice versa.

c. impulses «from retina» carried along the optic nerve ✔

d. «optic» nerves cross at «optic» chiasma ✔

e. impulses from the left side of the retina go to the left side of the brain ✔ Accept vice versa.

Accept any of these points made on an annotated diagram.

Syllabus sections