uncus


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Related to uncus: parahippocampal gyrus

uncus

 [ung´kus]
the medially curved anterior part of the hippocampal gyrus. adj., adj un´cal.

un·cus

, pl.

un·ci

(ŭn'kŭs, ŭn'sī), [TA]
1. Any hook-shaped process or structure.
2. The anterior, hooked extremity of the parahippocampal gyrus on the basomedial surface of the temporal lobe; the anterior face of the uncus corresponds to the olfactory cortex, its ventral surface to the entorhinal area; deep to the uncus lies the amygdala (amygdaloid body). Synonym(s): uncinate gyrus, uncus gyri parahippocampalis
[L. a hook, fr. G. onkos]

uncus

(ŭng′kəs)
n. pl. unci (ŭn′sī) Biology
A hook-shaped part or process.

un·cus

, pl. unci (ŭng'kŭs, ŭn'sī) [TA]
1. Any hook-shaped process or structure.
2. The anterior hooked extremity of the parahippocampal gyrus on the basomedial surface of the temporal lobe; the anterior face of the uncus corresponds to the olfactory cortex, its ventral surface to the entorhinal area; deep to the uncus lies the amygdala (amygdaloid body).
Synonym(s): uncinate gyrus.
[L. a hook, fr. G. onkos]

uncus

A hook-shaped part near the front of the temporal lobe of the brain that is concerned with the senses of smell and taste. Disease in this area may produce hallucinations of foul smells.
References in periodicals archive ?
prolongata Xiao & Li, 2009, but differ from male genitalia in the shorter elongated uncus, and fairly wide uncus and tegumen part.
Successful treatment correlated with a decrease in regional cerebral blood flow (rCBF) in the right uncus (refer to the section on EMDR for functional description of this structure); there seemed to be conflicting finding regarding activation of the middle frontal gyrus (MFG; both superior and middle FG are part of the dlPFC).
xenocrates se dispone mas estilizada y esbelta, con el uncus mas largo y delgado, la constriccion dorsoventral en su base es menos evidente que la especie anterior.
2f-2g) Uncus sclerotised, curved, slender distally; tegumen broad; juxta plate-like, bilobed; saccus V-shaped, without saccular process; valva broad, outwardly curved, distally cone-shape lobe with small hair; aedeagus broad, rod-like, dorsoventrally curved, dorsally a pair of hex-dentate thecal appendage, ventrally membranous lobe Female Genitalia (Fig.
Congestion of meningeal vessels, oedematous cortex with herniation of uncus and cerebellum are other features.7
Cuando tienen efecto de masa supratentorial generan el desplazamiento y herniacion ipsilateral del uncus del hipoacampo y del gyrus parahipocampal, sobre el tentorio con compresion del nervio motor ocular comun generando midriasis.
argentina (compare Parra & Santos-Salas, 1991: figs 1-3) but differing in shape of trifid uncus, bilobed and shorter saccus, in configuration of juxta and its lateral appendages, and in valve costa, hunched at middle.
Nevertheless, an MRI revealed nonconfluent hyperintense lesions that were significantly numerous for his age, with involvement of the temporal uncus and subcortical white matter.
Davis (1941) used the different-shaped uncus, which was illustrated by him, and length and shape of operculum (without description of a full species) to separate T.