Journey Of The Blood (Page 5 of 6) in pdf

Journey Of The Blood Page 5

How Much Blood Does Your Heart Pump?

Work with your group to complete the following tasks. Use the Data Collection Sheet to record your data and calculate

the average heart rate of your group!

1. Measure resting heart rate by counting the carotid or radial pulse.

2. To locate the carotid pulse, do the following:

Place index and middle fingers of right hand directly under right ear (or left hand under left ear).

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Next slide fingers down until they are directly under the jawbone, pressing lightly. Each pulse is a heartbeat.

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3. To locate the radial pulse, do the following:

Place index and middle fingers on the outside of opposite wrist, just below the base of your thumb. Each pulse

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is a heartbeat.

4. Measure pulse rate.

5. Count the number of beats in 10 seconds. Multiply that number by six to calculate the average number of heart beats

per minute. Record the results in the Data Collection Sheet.

6. Repeat for each group member.

7. Do jumping jacks (or another vigorous physical activity) for one minute and repeat the procedure for measuring and

calculating the heart rate. Repeat for each group member.

8. Immediately after the jumping jacks physical activity, continue to measure the pulse every 15 seconds. Record on

the Data Collection Sheet the total time needed for the pulse rate to return to the resting activity pulse rate.

9. Complete the calculations on the worksheet and enter the average resting heart rate and the average heart rate with

vigorous physical activity.

Journey Of The Blood Page 5