optic tectum


optic tectum
the dorsal roof of the mesencephalon concerned with vision

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • optic tectum — n SUPERIOR COLLICULUS …   Medical dictionary

  • optic tectum — A region of the midbrain in which input from the optic nerve is processed. Because the retinally derived neurons of the optic nerve map onto the optic tectum in a defined way, the question of how this specificity is determined has been a long… …   Dictionary of molecular biology

  • optic tectum — noun : the visual projection area of fish and amphibians homologous to the mammalian superior colliculus ; also : superior colliculus …   Useful english dictionary

  • Superior colliculus — Brain: Superior colliculus Section through superior colliculus (unlabeled) showing path of oculomotor nerve …   Wikipedia

  • Infrared sensing in snakes — The ability to sense infrared thermal radiation evolved independently in several different families of snakes. Essentially, it allows these animals to “see” radiant heat at wavelengths between 5 and 30 μm to a degree of accuracy such that a blind …   Wikipedia

  • Vision in toads — The neural basis of prey detection, recognition, and orientation was studied in depth by Jörg Peter Ewert in a series of experiments that made the toad visual system a model system in neuroethology (neural basis of natural behavior). He began by… …   Wikipedia

  • Lateral geniculate nucleus — Brain: Lateral geniculate nucleus Hind and mid brains; postero lateral view. (Lateral geniculate body visible near top.) Latin Corpus geniculatum laterale Part of Thalamus System …   Wikipedia

  • Brain — This article is about the brains of all types of animals, including humans. For information specific to the human brain, see Human brain. For other uses, see Brain (disambiguation). A chimpanzee brain The brain is …   Wikipedia

  • Верхнее двухолмие — Средний мозг человека. Верхнее двухолмие выделено синим цветом. Верхнее двухолмие (лат. Superior colliculus) одна из основных структур среднего мозга позвоночных. Оно обычно является частью его верхней дорсальной поверхности и вместе с… …   Википедия

  • Mauthner cell — The Mauthner Cells are a pair of big and easily identifiable neurons (one for each half of the body) located in the rhombomere 4 of the hindbrain in fish and amphibians that are responsible for a very fast escape reflex (in the majority of… …   Wikipedia


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