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chiasm |
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chiasm /chi·asm/ (ki´azm) a decussation or X-shaped crossing.
optic chiasm the structure in the forebrain formed by the decussation of the fibers of the optic nerve from each half of each retina.
chiasm [kī′azəm] Etymology: Gk, chiasma, lines that cross 1 the crossing of two lines or tracts, as of the optic nerves at the optic chiasm. 2 (in genetics) the crossing of two chromatids in the prophase of meiosis. chiasmal, chiasmic, adj. chiasm [ki´azm] a decussation or X-shaped crossing. optic chiasm a structure in the forebrain formed by the decussation of fibers of the optic nerve from each half of each retina. ![]() chiasm a decussation or Y-shaped crossing. optic chiasm
a structure in the forebrain formed by the decussation of fibers of the optic nerve from each half of each retina. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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