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What effect would a drug that blocks the parasympathetic nervous system have on peristalsis in the GIT?
Wiki User
∙ 11y ago
increase motility
Wiki User
∙ 11y ago
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Why sympathetic nervous system has generalized effect while parasympathetic nervous system has localized effect?
the ratio of a preganglionic neuron to
Does the effect of epinephrine mimic the effect of the sympathetic nervous system or the parasympathetic nervous system?
epinephrine (or adrenaline in the UK) mimics the effects of norepinephrine (noradrenaline in UK), so activates the SNS, not the PSNS.
Does gravity help peristalsis?
No. Gravity has no effect on the involuntary movement of peristalsis whatsoever.
How does jimson weed effect the body?
Its deliriants such as scopolamine act as competitive antagonist at muscarinic acetylcholine receptors. This affects the parasympathetic nervous system and leads to numerous potentially dangerous issues.
Why atropine has no effect on blood pressure?
The muscarinic receptors in the vasculature are not inneravated by the parasympathetic nervous system. Therefore, atropine binds to these receptors, but causes no response since it is a pure muscarinic antagonist.
Would The parasympathetic nervous system control and allow for active diuresis?
Parasympathetic stimulation stimulates the muscarinic receptors (and nicotinic) leading to increased Salivation, Lacrimation, Urination, Defacation, increased Gastric motility, Emesis etc Baroreceptors detect increased BP (vessel stretch) and increase vagal tone - > increase parasympathetic tone ->increase muscarinic stimualtion - > diuresis Also consider the effect of Atrial Natruetic Peptide and its effect...
What is the sympathetic effect on the heart?
Heart rate increases with sympathetic nervous system. There is increase in stroke volume and cardiac output. With stimulation of vagus nerve or parasympathetic nervous system, You have decrease in heart rate. There is decrease the stroke volume and cardiac output.
What is the cardiac effect of a drug that blocks parasympathetic activity?
Increased firing of the sinoatrial node (SA) and conduction through the atrioventricular node (AV) of the heart, because the actions of the vagus nerve are opposed/blocked.
Why does atropine cause tachycardia?
Check out the atropine page at wikipedia.org for your answer.
Explain the difference between sympathetic and parasympathetic reactions as they occur in the autonomic nervous system?
The sympathetic nervous system is most active when you are in an emergency, exercising, or an exciting or embarrassing situation. It is often referred to as the "fight-or-flight" system. It increases the heart rate, blood pressure, and blood glucose levels. It also dilates the bronchioles of the lungs, and dilates the blood vessels of the skeletal muscles. This nervous system enables the body to cope rapidly with situations. The parasympathetic nervous system is active when the body is resting. It is referred to as the "resting-and-digesting" system. It conserves your body's energy by slowing the heart rate. It also promotes digestion.sypmathetic is the "fight or flight" response and the parasympathetic is the "rest and digest" responses
What is the parasympathetic and Sympathetic effect on the stomach?
The parasympathetic is stimulatory to stomach , increase the gastric secretion and motility while the sympathetic is inhibitory , decrease the gastric secretion and motility
What effect does alcohol have on the transmission of electrical impulses in the nervous system?
Alcohol is a dpressant. A depressant is: anything that reduces functional or nervous activity. Alcohol blocks some of the messages that travel to the brain. This changes a person's perceptions, emotions, movement, vision, and hearing.
