tectum

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tectum

 [tek´tum]
a rooflike structure.
tectum of mesencephalon (tectum of midbrain) the posterior part of the tegmentum mesencephali.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

tec·tum

, pl.

tec·ta

(tek'tŭm, tek'tă),
Any rooflike covering or structure.
[L. roof, roofed structure, fr. tego, pp. tectus, to cover]
Farlex Partner Medical Dictionary © Farlex 2012

tectum

(tĕk′təm)
n. pl. tec·ta (-tə)
A rooflike structure of the body, especially the dorsal part of the midbrain.

tec′tal (-təl) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

tec·tum

, pl. tecta (tek'tŭm, -tă)
Any rooflike covering or structure.
[L. roof, roofed structure, fr. tego, pp. tectus, to cover]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

tectum

Any roof-like body structure such as the back (dorsal) part of the midbrain.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
In an Arc-like fashion, our data indicate AIP increased in the telencephalon 60 min after exposure to a novel environment, but AIP remained unchanged in the optic tectum. Notably, this telencephalon-specific upregulation after an environmental stimulus is consistent with Arc homologs in rodents (Ons et al.
Regarding the optic tectum, few studies examining environment-induced gene expression in the central nervous system of teleost species exist that may inform speculation into the selectivity of the increase in AIP.
Also, all areas shown to express AIP at high levels in zebrafish--the olfactory bulbs, telencephalon, optic tectum, cerebellum, hypothalamus (including mammillary bodies), and brain stem--have been shown to express the NPY-R in homologous structures in rats (Kopp et al.
Several of the MABs reacted strongly with antigenic sites that appeared to be localized in the extracellular space in both the optic tectum (Fig.
1C, reaction with MAB 1H 12 produced a dense, granular reaction product in the outer layer (the stratum opticum) of the developed portion of the optic tectum. This discretely organized reaction product was found in precisely the site where the ingrowing fibers from the retina were located.
As in the optic tectum, the principal reaction products recognized by the antibodies in the cerebellum were elements outside the neuronal somata (Fig.
Our results showed that cells in the adult goldfish forebrain and optic tectum are transfectable in vivo.