- adrenergic fibers
- nerve fibers, usually sympathetic, that release epinephrine or related substances as neurotransmitters.
Medical dictionary. 2011.
Medical dictionary. 2011.
adrenergic receptor — a site on an effector organ innervated by postganglionic adrenergic fibers of the sympathetic nervous system, classified as either α adrenergic or β adrenergic according to its reaction to norepinephrine and epinephrine, as well as to… … Medical dictionary
adrenergic — 1. Relating to nerve cells or fibers of the autonomic nervous system that employ norepinephrine as their neurotransmitter. Cf.:cholinergic. 2. Relating to drugs that mimic the actions of the sympathetic nervous system. See α a. receptors, under… … Medical dictionary
accelerating fibers — accelerator fibers adrenergic fibers that transmit the impulses that accelerate the heartbeat; called also augmentor or cardiac accelerator f s … Medical dictionary
Postganglionic fibers — Infobox Nerve Name = PAGENAME Latin = neurofibrae postganglionicae GraySubject = GrayPage = Caption = Sympathetic connections of the ciliary and superior cervical ganglia. Caption2 = Innervates = BranchFrom = BranchTo = MeshName = MeshNumber =… … Wikipedia
Muscarinic acetylcholine receptor — Amanita muscaria, the mushroom from which muscarine was isolated … Wikipedia
sympathetic nervous system — noun originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels • Hypernyms: ↑nervous system, ↑systema nervosum • Part… … Useful english dictionary
Fiber — The parts of plants that cannot be digested, namely complex carbohydrates. Also known as bulk or roughage. Complex carbohydrates from plants are rich in starch and fiber. Examples of plants that provide complex carbohydrates (fiber) are fresh… … Medical dictionary
Sympathetic nervous system — A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise blood pressure. The sympathetic nervous system and the parasympathetic nervous system constitute the autonomic nervous system, the branch of … Medical dictionary
effect — The result or consequence of an action. [L. efficio, pp. effectus, to accomplish, fr. facio, to do] abscopal e. a reaction produced following irradiation but occurring outside the zone of actual radiation absorption. additive e. an e. wherein two … Medical dictionary
Eccrine sweat gland — Latin glandula sudorifera merocrina; glandula sudorifera eccrina Code TH H3.12.00.3.03009 … Wikipedia