Using the answer code on the right, indicate whether the following factors increase or decrease venous return: (a) increases venous return (b) decreases venous return (c) has no effect on venousreturn 1. sympathetically induced venous vasoconstriction 2. skeletal muscle activity 3. gravitational effects on the venous system 4. respiratory activity $5 .$ increased atrial pressure associated with a leaky AV valve 6. ventricular pressure change associated with diastolic recoil
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Sympathetically induced venous vasoconstriction: This would cause the veins to constrict, increasing the pressure and pushing more blood back to the heart. So, it would increase venous return. (a) Show more…
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Madhur L.
Which of the following can lead to decreased venous return of blood to the heart? (a) an increase in blood volume, (b) an increase in venous pressure, (c) damage to the venous valves, (d) increased muscular activity.
Which one of the following is caused by a decrease in venous return to the heart: a decrease in stroke volume and an increase in cardiac output an increase in stroke volume and cardiac output a decrease in stroke volume and cardiac output an increase in stroke volume and a decrease in cardiac output no change in stroke volume and cardiac output
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