In a physiology lab,the students designed an experiment to illustrate how the heart responds to changes in blood pressure.Everyone relaxed and then did a headstand.Which of the following observations are consistent with the change in the function of their hearts?
A)increased heart rate
B)decreased heart rate
C)increased stroke volume
D)decreased stroke volume
E)both decreased heart rate and increased stroke volume

Question

Quizplus · Accepted Answer

When doing a headstand, blood pressure in the upper body increases due to gravity, leading to activation of baroreceptors which cause a decrease in heart rate and an increase in stroke volume to maintain cardiac output.

In a Physiology Lab,the Students Designed an Experiment to Illustrate