Autonomous nervous system ANS
10 important questions on Autonomous nervous system ANS
What is the autonomous nervous system (ANS)
Lot of drug interfear with the ANS.
What is afferent and efferent?
Efferent are action potentials comming from the CNS
What happens when you stimulate beta2 receptors?
agonist: it will get you muscles and it helps against asthma.
antagonist: beta blockers were not specific. That is why bronchiconstriction was a side effect for lowering of bloodpressure.
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What happens when beta3 receptors are stimulated?
What happens when stimulating alpha1 receptors?
Agonist: It could be used in the nose for vasoconstriction
Antagonist: It could be used to relax the muscles around the uteris in man. To help them pie.
What happens when alpha2 receptors is stimulated?
agonist: vasodilation
antagonist: (green viagra) vasoconstriction, local swelling.
What are indirectly acting sympathomimetics
Sympathiolimics are the opposites, they inhibit.
Is there use to stimulate the parasympathetic nervous system?
SLUD, side effects.
Antagonists can be used in the parasymphatetic nervous system:
Scopolamine can prevent motion sickness.
curare, this was used to hunt, the neurons are blocked and you can not move anymore. Your hart will continue but you cant breath anymore.
What happens if you stimulate the beta1 receptor (sympathetic nervous system) with an agonist or antagonist?
Antagonist: beta-blocker. it inhibits your sympathetic nervous system, this will decrease the hartrate and the vasoconstriction. It is there to lower your bloodpressure, for example when you are stressed.
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