Flashcards in Autonomic Nervous System Deck (14):
Autonomic nervous system regulates vital functions of all organs by both reflex and central nervous system control but not by...
The ANS consists of a System and an opposing System.
Sympathetic and parasympathetic
Each of these two systems has its own
Terminal ends of sympathetic nerves secrete . Which activates.
Norepinephrine, adrenergic receptors
The terminal parasympathetic nerve ends secrete . Which acts on.
Acetylcholine, cholinergic receptors
Sympathetic system activates
Response if Beta 1 adrenergic receptor stimulation
Increased rate at SA node, increase rate of conduction, increased force of contractility, increase irritability
Parasympathetic system activation inhibits cardiac effects. Response is
Decreased SA node pacing, decreased rate, decreased force, decreased irritability
Sympathetic activation of alpha 1 receptors causes
Construction of arteries
Parasympathetic stimulation of cholinergic receptors causes
Severe pain or seeing ones own blood may induce
Reflex parasympathetic response that causes syncope
Sympathetic response that constricts peripheral arteries to prevent distal pooling of blood and stimulates pacing
An abrupt fall in blood pressure caused by failure of the compensatory mechanisms of standing