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Nicotinic receptors occur at all synapses of the ANS where preganglionic nerve fibers stimulate postganglionic nerve fibers. These receptors occur at the renal medulla and neuromuscular junctions of the skeletal muscles.

Nicotinic receptors occur at all synapses of the ANS where preganglionic nerve fibers stimulate postganglionic nerve fibers. These receptors occur at the renal medulla and neuromuscular junctions of the skeletal muscles.

Rudolf Virchow postulated the active drivers of stroke risk in atrial fibrillation more than 150 years ago

Virchow's Triad

Rudolf Virchow postulated the active drivers of stroke risk in atrial fibrillation more than 150 years ago

Adrenaline: The effects of Alpha and Beta adrenergic receptors on vasoconstriction and blood flow in psoriasis « PsoriasisDietPlan.com

Adrenaline: The effects of Alpha and Beta adrenergic receptors on vasoconstriction and blood flow in psoriasis « PsoriasisDietPlan.com

The ANS can produce opposite effects on an organ without the use of dual innervation. For example, the sympathetic fibers to blood vessels have a baseline sympathetic tone that keeps the vessels in partial constriction called vasomotor tone. An increase in firing constricts the vessel, while a decrease dilates it, therefore, letting the sympathetic division exert different effects on the vessels. The vasomotor tone acts to shift blood flow from one organ to the next based on the body's need.

The ANS can produce opposite effects on an organ without the use of dual innervation. For example, the sympathetic fibers to blood vessels have a baseline sympathetic tone that keeps the vessels in partial constriction called vasomotor tone. An increase in firing constricts the vessel, while a decrease dilates it, therefore, letting the sympathetic division exert different effects on the vessels. The vasomotor tone acts to shift blood flow from one organ to the next based on the body's need.

http://journal.frontiersin.org/article/10.3389/fphys.2012.00460/full

http://journal.frontiersin.org/article/10.3389/fphys.2012.00460/full

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