What is the difference between optic chiasm optic nerve and optic tract?
Furthermore, what is the difference between the optic nerve and the optic tract?
-optic tract fibers from both eyes which is 60% crosses the optic chiasm and 40% continue to the thalamus and midbrain targets on the same side. protectum is the collection of neurons that lies between the thalamus and the midbrain.
Also, what happens to the optic nerves at the optic chiasm? Optic chiasma Crucial to vision, the left and right optic nerves intersect at the chiasm, thus creating the hallmark X-shape. One-half of each nerve's axons (their long, threadlike portions) enters the opposite tract at this location, making it a partial decussation (crossing).
Likewise, people ask, what does the optic tract do?
The left optic nerve and the optic tracts. The optic tract (from the Latin tractus opticus) is a part of the visual system in the brain. It is a continuation of the optic nerve that relays information from the optic chiasm to the ipsilateral lateral geniculate nucleus (LGN), pretectal nuclei, and superior colliculus.
Why is optic nerve a tract?
The optic nerve is formed by the convergence of axons from the retinal ganglion cells. These cells in turn receive impulses from the photoreceptors of the eye (the rods and cones). After its formation, the nerve leaves the bony orbit via the optic canal, a passageway through the sphenoid bone.