Question

where does the visual pathway cross so that each optic tract carries impulses from the opposite visual field? a thalamus b optic radiations c optic chiasma d optic nerve

Explanation:

The optic chiasma is the point where the visual pathways cross. Nerve - fibers from the nasal half of each retina cross over, so that each optic tract carries impulses from the opposite visual field. The thalamus is a relay station for visual information after the optic chiasma. Optic radiations are the projection fibers from the lateral geniculate body to the visual cortex. The optic nerve transmits visual information from the retina to the brain before reaching the optic chiasma.

Answer:

C. Optic chiasma