optic tract

optic tract
optic tract n the portion of each optic nerve between the optic chiasma and the diencephalon proper

* * *

tractus opticus.

Medical dictionary. 2011.

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  • Optic chiasm — Brain: Optic chiasm Visual pathway with optic chiasm (X shape outlined, red) (1543 image from Andreas Vesalius Fabrica) Latin chiasma opticum Gray s …   Wikipedia

  • tract — An elongated area, e.g., path, track, way. SEE ALSO: fascicle. SYN: tractus. [L. tractus, a drawing out] alimentary t. SYN: digestive t.. anterior corticospinal t. uncrossed fibers forming a small bundle in the anterior funiculus of the …   Medical dictionary

  • Optic nerve pathways — The left and right branches of the optic nerves join behind the eyes, just in front of the pituitary gland, to form a cross shaped structure called the optic chiasma. Within the optic chiasma, some of the nerve fibers cross. The fibers from the… …   Medical dictionary

  • optic nerve — Anat. either one of the second pair of cranial nerves, consisting of sensory fibers that conduct impulses from the retina to the brain. See illus. under eye. [1605 15] * * * ▪ anatomy   second cranial nerve, which carries sensory nerve impulses… …   Universalium

  • optic nerve — noun the cranial nerve that serves the retina • Syn: ↑nervus opticus, ↑second cranial nerve, ↑optic tract • Hypernyms: ↑cranial nerve • Part Holonyms: ↑visual system, ↑ …   Useful english dictionary

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