tractus

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tractus

(ˈtræktəs)
n
(Roman Catholic Church) RC Church an anthem sung in some Roman Catholic masses
References in periodicals archive ?
This function is the nearby nucleus tractus solitarius where dopamine and opioid receptors are abundant.
It has recently been suggested that astrocytes attached to the nucleus tractus solitarius (NTS), in the dorsal hindbrain, are involved in triggering processes that affect gastrointestinal motility during glucose deprivation (38).
5) The presence of NO in certain nuclei involved in cardiovascular regulation such as the rostral ventrolateral medulla (RVLM), (14) nucleus tractus solitarius (NTS), (15) and paraventricular nucleus (16) has also been previously shown.
Presynaptically mediated inhibition of norepinephrine and a vagomimetic action at nucleus tractus solitarius are responsible for bradycardia, but no bradycardia was seen in both groups in our study.
Inhibition of the sympathetic nervous system by dexmedetomidine decreases sympathetic tone, mainly by selectively activating the postsynaptic [alpha]2 adrenergic receptors in the central nucleus tractus solitarius, thereby preventing sympathetic neurons in the anterior lateral horn of the spinal cord from transmitting impulses (17).
The neural anatomical pathways for controlling gut functions form a hierarchic four-level integrative organization:[sup][41],[42] the first level is the ENS, including myenteric ganglia, submucous ganglion, and gut glial cells;[sup][43],[44] the second level is prevertebral ganglia regulating peripheral visceral reflex responses;[sup][45] The third level is the ANS in the spinal cord (from T5-L2 sympathetic nerve and S2-S4 parasympathetic nervous system) and brain stem nucleus tractus solitarius and dorsal motor nucleus of VN, which receive and give the origin of afferent and efferent fiber of VN, respectively.
The output from the neurons of respiratory center influences the gain of the afferent and efferent outputs at the nucleus tractus solitarius.
Endogeneus leptin signaling in the caudal nucleus tractus solitarius and area postrema is required for energy balance regulation.
The baroreflex arc is composed of multiple neural components including the aortic and carotid baroreceptors, the nucleus tractus solitarius (NTS), paraventricular nucleus of the hypothalamus (PVN), nucleus ambiguus (NA), caudal ventrolateral medulla (CVLM), and rostral ventrolateral medulla (RVLM) [16-19].
Antitussive agents suppress the cough reflex peripherally by suppressing the stimulation of sensory neurons in the airways or centrally at the level of the cough center in the nucleus tractus solitarius and its integrating network (Reynolds et al.
Hypotensive effects of neuromedin U microinjected into the cardiovascular related region of the rat nucleus tractus solitarius.
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.

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