Questions: Let's make a hypothesis. What behavior do you expect from the heart rate and blood pressure variables during exercise? a) Both should rise during exercise b) The heart rate should rise but not the blood pressure c) The blood pressure should rise but not the heart rate

Let's make a hypothesis. What behavior do you expect from the heart rate and blood pressure variables during exercise?
a) Both should rise during exercise
b) The heart rate should rise but not the blood pressure
c) The blood pressure should rise but not the heart rate

Transcript text: Let's make a hypothesis. What behavior do you expect from the heart rate and blood pressure variables during exercise? a) Both should rise during exercise b) The heart rate should rise but not the blood pressure c) The blood pressure should rise but not the heart rate

Solution

The answer is the first one (a): Both should rise during exercise.

Explanation for each option:

a) Both should rise during exercise - This is correct. During exercise, the body requires more oxygen and nutrients, which are delivered through the blood. To meet this increased demand, the heart rate increases to pump more blood, and the blood pressure rises to ensure efficient circulation.

b) The heart rate should rise but not the blood pressure - This is incorrect. While it is true that the heart rate increases during exercise, blood pressure also typically rises to support the increased blood flow needed by the muscles.

c) The blood pressure should rise but not the heart rate - This is incorrect. Blood pressure does rise during exercise, but the heart rate also increases to pump more blood to the muscles.

Summary: During exercise, both heart rate and blood pressure are expected to rise to meet the increased demands of the body.

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