Among the followings which does not indicate the stimulation of parasympathetic system? A. Contriction of skeletal muscle blood and vasodilation of renla blood B. Excitation of the blood flow to the kidneys and smooth muscles of Gl tract C. Inhibition of heart rate and amooth muscles of the urinary bladder Excitation of the smooth muscles of the urinary bladder and Gl tract

Among the followings which does not indicate the stimulation of parasympathetic system? A. Contriction of skeletal muscle blood and vasodilation of renla blood B. Excitation of the blood flow to the kidneys and smooth muscles of Gl tract C. Inhibition of heart rate and amooth muscles of the urinary bladder Excitation of the smooth muscles of the urinary bladder and Gl tract

Body Structures & Functions

12th Edition

ISBN:9781285695495

Author:Scott

Publisher:Scott

Chapter9: Peripheral And Autonomic Nervous System

Section: Chapter Questions

Problem 7RQ

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During strenuous exercise, which of the following changes most infuences total peripheral resistance?A) Decreased blood viscosityB) Decreased sympathetic cholinergic activityC) Increased sympathetic adrenergic activity D) Vasodilation in skeletal muscle
Parasympathetic activation can result in all of the following EXCEPT __________.A.constriction of the pupils and bronchiB.decreased blood pressureC.decreased function of the gastrointestinal tractD.decreased heart rate
During strenuous exercise, which of the following changes most influences total peripheral resistance?A. Decreased blood viscosityB. Decreased Sympathetic cholinergic activityC. Increased sympathetic adrenergic activityD. Vasodilation in skeletal muscle
What is the direct effect (prior to any reflex compensation) of administeringintravenously a selective beta 1 receptor agonist?A)Increased heart rate, stroke volume and total peripheral resistance.B)Increased total peripheral resistance and renin secretion.C)Increased heart rate and stroke volume.D) Increased total peripheral resistance and decreased renin secretion.E) Decreased renin secretion, total peripheral resistance and heart rate.
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What effect does sympathetic stimulation have on stroke volume if thevenous return remains constant? Dilation of the coronary blood vesselsoccurs in response to an increased heart rate and stroke volume. Explainthe functional advantage of that effect.
Activation of β2-adrenergic receptors in vascular smooth muscle stimulates vasodilation / vasoconstriction. Give an example of organs where this occurs.
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A person is warming their feet by a fire. Which of the following statements is TRUE? O A. The medial section of the post-central gyrus will be active. B. The lateral section of the pre-central gyrus will be active. OC. There will be an increase in frequency of action potentials along the medial lemniscal system. D. There will be decreased frequency of action potentials along the spinothalamic tract.
Parasympathetic nerves _____. A cause smooth muscle in blood vessel walls to contract B cause smooth muscle in blood vessel walls to relax C have no role in the innervation of blood vessels