tectal


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Related to tectal: tectal plate

tec·tum

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

[Latin tēctum, roof, from neuter past participle of tegere, to cover; see (s)teg- in Indo-European roots.]

tec′tal (-təl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

tectal

(ˈtɛktəl)
adj
(Anatomy) anatomy of or relating to the tectum
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Symmetric alterations in the medial thalami, mammillary bodies, periaqueductal region and tectal plate are the common typical lesions.
These grains are monosulcate and have reticulate-columellar exine structure; Couper and other early authors (e.g., Brenner, 1963; Doyle, 1969) described the columellae as varying from free to fused at their heads to form a tectal reticulum, but SEM studies showed that they are typically reticulate (Doyle et al., 1975; Hughes et al., 1979).
For example, intense somatic staining was evident in cells directly adjacent to the telencephalic ventricles (TelV; Figure 1B), the rhombocephalic ventricles (RV; Figures 1A, 1C), the tectal ventricle (TeV; Figure 1D), and the hypothalamic diencephalic ventricle (DiV; Figure 1E).
Typically, MRI scan results are symmetrical lesions in the mammillary bodies, thalami, tectal plate, and periaqueductal area which showed increased T2 signal in these sites.[5] In our case, brain computed tomography scan result was unremarkable.
(1997) Tectal codification of eye movements in goldfish studied by electrical microstimulation.
Calculation of the ETVSS * Score Age Etiology 0 <1 mo Postinfectious 10 1 mo to <6 mos 20 Myelomeningocele, IVH, nontectal brain tumor 30 6 mos to <1 yr Aqueductal stenosis, tectal tumor, other 40 1 yr to < 10 yrs 50 [greater than or equal to]10 yrs Calculation of the ETVSS * Score Previous Shunt 0 Previous shunt 10 No previous shunt 20 30 40 50 * The ETVSS is calculated as age score + etiology score + previous shunt score.
Gaze, "Selection of appropriate tectal connections by regenerating optic nerve fibers in adult goldfish," Experimental Neurology, vol.
Tectal glioma is a relatively benign tumour and presents with symptoms of obstructive hydrocephalus with good prognosis.
Marked flattening of the tectal plate was noted due to cerebral aqueductal dilatation and dilated perimesencephalic cisterns.