Card 18 / 23: What is the difference between the optic nerve and tract?
A.)
One has oligodendrocytes and the other Schwann cells.
B.)
One has third order axons and one has second order axons.
C.)
One has only ipsilateral axons and the other has both ipsilateral and contralateral axons.
D.)
One is central nervous system tissue and the other is peripheral nervous system tissue.
Answer:
C.) One has only ipsilateral axons and the other has both ipsilateral and contralateral axons.
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Because of the partial decussation in the chiasm, the optic tract contains axons from ganglion cells of both eyes.
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