Optic chiasma

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Optic Chiasma

The Optic Chiasma (pronounced: /ˈɒptɪk kaɪˈæzmə/), also known as the Optic Chiasm, is an X-shaped structure formed by the crossing of the optic nerves in the brain. The optic chiasma is crucial for binocular vision.

Etymology

The term "Optic Chiasma" is derived from the Greek word 'χίασμα' (chiasma), which means 'crossing'. The prefix 'optic' refers to the eye or vision, originating from the Greek word 'ὀπτικός' (optikos).

Function

The optic chiasma allows the visual signals from each eye to be split evenly between the two hemispheres of the brain. This ensures that both halves of the brain receive a full picture of the visual field. The optic chiasma is part of the visual pathway, which includes the retina, optic nerve, optic tract, and the lateral geniculate nucleus.

Related Terms

  • Optic Nerve: The nerve that transmits visual information from the retina to the brain.
  • Binocular Vision: The ability to maintain visual focus on an object with both eyes, creating a single visual image.
  • Visual Pathway: The pathway by which visual information is transmitted from the eye to the brain.
  • Lateral Geniculate Nucleus: A relay center in the thalamus for the visual pathway.

See Also

External links

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