Postganglionic Nerve Fiber

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Related to postganglionic: postganglionic neurons

Postganglionic Nerve Fiber

 

a fiber of the vegetative nervous system, extending from the nerve cells of ganglia to the cells of the organs innervated by the ganglia. The cells constituting a postganglionic nerve fiber are in synaptic communication with a preganglionic nerve fiber.

References in periodicals archive ?
Guanethidine exerts its effects at the postganglionic terminals of adrenergic neurons.
1988), demonstrated that brevetoxin-induced contractile effects can be blocked with atropine but not with a histamine antagonist, suggesting that toxin-induced constriction results from stimulation of parasympathetic postganglionic neurons.
The diastolic blood pressure goal of 90 mm Hg or less or reduction in diastolic pressure of 10 mm Hg or more was reached in 23% of all patients: 46% with calcium channel blockers, 31% diuretics, 23% centrally acting agents, 19% [beta]-blockers, 19% ARBs, 13% [alpha]-blockers, 10% ACE inhibitors, and 0% postganglionic sympathetic neuron blockers.
The vasomotor fibers are nonmyelinated postganglionic twigs arising from the cervical sympathetic ganglia and exerting an influence on thyroid secretory activity via their action on blood vessels.
2]-adrenergic and imidazoline receptors, suppressing the release of noradrenaline in postganglionic sympathetic nerves and that it decreases plasma concentration of noradrenaline (Brunton et al.
In patients with Parkinson's and dementia with Lewy bodies, you don't see this, because of the loss of postganglionic parasympathetic nerve fibers," Dr.
Thompson and Mensher (1) described the topical use of cocaine to confirm the diagnosis of Horner's syndrome and hydroxyamphetamine to distinguish between pre- and postganglionic causative lesions.
Frey's syndrome is generally believed to be caused by an aberration in the regrowth of the postganglionic parasympathetic fibers that normally supply the parotid gland.
In achalasia, you have a loss of the inhibitory postganglionic fibers, and as a result, there is a relatively increased amount of acetylcholine.
2) Hypotension is the result of cutaneous flushing and is mediated through vasodilation of vascular smooth muscle and inhibition of norepinephrine release by sympathetic postganglionic nerves.
Additional skin changes with PD include abnormal sweat response due to dysfunctional postganglionic sympathetic fibers.