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tract

1
1. Anatomy a system of organs, glands, or other tissues that has a particular function
2. a bundle of nerve fibres having the same function, origin, and termination

tract

2
RC Church an anthem in some Masses

Tract

 

in the central nervous system, any one of several groups of closely placed nerve fibers having a common morphological structure and common functions. Tracts are divided by function into associative tracts, which unite various sections of the cerebral cortex in the same hemisphere; commisural tracts, which connect both hemispheres and ensure their cooperative activity; and projection tracts, which unite the cerebral cortex with lower brain formations and, through them, with the periphery.

References in periodicals archive ?
"During surgery, TRACTUS collects every implant and surgical supply data.
Potts, "Inhibitory neurotransmission in the nucleus tractus solitarii: implications for baroreflex resetting during exercise," Experimental Physiology, vol.
"Neuroactive substances in the dorsal vagal complex of the medulla oblongata: nucleus of the tractus solitarius, area postrema, and dorsal motor nucleus of the vagus." Neurochemistry International 7.1 (1985): 191-211.
Lokalizacija bakterijske infekcije (n = 153) ITU 33 ITU Pneumonia 32 Pneumonia SBP 29 SBP Infection of the skin 13 and soft tissue Infekcija koze i Mekih tkiva Undetermined 37 Neutvrdeno ITU (infectio tractus urinarii/infectio tractus urinarii); SBP (spontaneous bacterial peritonitis/spontani bakterijski peritonitis) Note: Table made from bar graph.
Buecheler 1895-1897) Quod si fort[e t]uus non me vitaverit axis, Excutiere rotis [e]t tractus ut He[c]tor Home[ri Debilior nobis i[n]ter tua plaustra iacebis (21).
Central circuits that process afferent visceral and vestibular information related to balance control include vestibular nuclei, nucleus tractus solitarii, thalamus, and vestibular cortex.
These include, but are not limited to, exciting spinoreticular pathways and dorsal column pathways to the PMRF, modulation of vestibulosympathetic pathways and vestibulocerebellar activation of the nucleus tractus solitarius, dorsal motor nucleus of vagus, and nucleus ambiguous.
However brainstem catecholaminergic regions projecting to the paraventricular nucleus showed a regionally selective and dose-dependent sensitivity to nicotine particularly the noradrenergic/adrenergic nucleus tractus solitarius [30].
Ce produit est dangereux pour la sante et les personnes qui sont en contact direct avec le perchloroethylene peuvent souffrir de differentes affections dont des irritations cutanees et des muqueuses, une irritation des tractus respiratoires avec risque d'oedeme pulmonaire.
Second Scholasticism legal discourses on royal power have been identified by the latest historiography (65) as important components of the ideas shared by the inconfidentes; and it was no coincidence that Jose Vieira Couto owned Tractus de Legibus, De lege naturali, by Francisco Suarez (1548-1617), one of it's most prominent thinkers.