Question
Part (Arrow) in visual pathway as shown in photograph below is related to ?
A. Olivary mucleus.
B. Lat. Geniculate body.
C. Medial geniculate body.
D. Trapezoid body.
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Correct Answer » B Explanation |
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Ans:B. Lateral Geniculate Body.
Part (Arrow) in visual pathway as shown in photograph above represents optic tract.
Optic tract relays the information to Lateral geniculate body.
Visual Pathway
- Vision is generated by photoreceptors in the retina.
- The information leaves the eye by way of the optic nerve, and there is a partial crossing of axons at the optic chiasm.
- After the chiasm, the axons are called the optic tract.
- The optic tract wraps around the midbrain to get to the lateral geniculate nucleus (LGN), where all the axons must synapse.
- From there, the LGN axons fan out through the deep white matter of the brain as the optic radiations, which will ultimately travel to primary visual cortex(Areas 17,18 and 19)