| 单词 | optic tectum | 
| 释义 | > as lemmasoptic tectum   optic tectum  n. Anatomy and Zoology the part of the tectum mesencephali concerned with the functioning of the visual system. ΚΠ 1896    Science 28 Feb. 330/1  				In fishes..he has..demonstrated an indirect connection between the optic tectum and the axial lobe. 1926    Jrnl. Compar. Neurol. 40 217  				The optic tectum far surpasses the cortical areas of the reptilian hemispheres. 1997    Proc. Royal Soc. B. 264 1724/1  				The juncture between the diencephalon and optic tectum. optic tectum (or tectum opticum)  b.  More fully  optic tectum (or tectum opticum). That part of the tectum mesencephali concerned with the functioning of the visual system. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > 			[noun]		 > tectum tectum1907 1907    J. B. Johnston Nerv. Syst. Vertebr. viii. 147  				Structure of the tectum opticum.—In the lower fishes the tectum contains a large number of cells of several forms. 1926    Jrnl. Compar. Neurol. 40 217  				The optic tectum far surpasses the cortical areas of the reptilian hemispheres. 1982    Sci. Amer. Mar. 104/3  				The optic tectum, also known in mammals as the superior colliculus, is one of the major visual centers of the brain. < as lemmas | 
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