Biology

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BIO 101 – Principles of Biology Simon, E. J., Dickey, J. L., & Reece, J. B. (2013). Campbell essential biology with physiology (4th ed.). Boston, MA: Pearson. Resource: MasteringBiology Access Log into MasteringBiology. Instructions for logging into MasteringBiology and accessing the investigations are found in the "MasteringBiology Access" document located on the student website. Complete the MasteringBiology Lab: Chapter 23 Investigation: How Is Cardiovascular Fitness Measured? * Take notes in the investigation's notebook as you perform the experiments. * Answer the questions associated with the investigation. Save your answers as a Microsoft® Word document. * Click the Submit for Grading button. * Type…show more content…
Record this reading as the systolic pressure. You continue to deflate the cuff until the tapping sounds cease. 4. The last tapping sound you hear indicates the diastolic pressure. As you have seen, a pulse is measured as the distention of an artery that can be felt each time the heart contracts. Pulse is measured in number of beats per minute. You can measure pulse anywhere an artery passes close to the skin. Clinically, it is most common to measure heart rate in the radial artery on the inside of the wrist. The figure shows you the procedure. 1. Place your index and middle fingers in the groove on the inside of the wrist. Just slide your fingers across the tendons until they slip into soft tissue. 2. Wait until you clearly feel beats coming with a regular rhythm. 3. Count the number of beats for 15 seconds and multiply by 4 (or for 30 seconds and multiply by 2) to get the number of beats per minute. The normal resting heart rate for ages 10 and above is 60 to 100 beats per minute. Well-trained athletes have a rate of 40 to 60 beats per minute. Answer Questions 2 and 3 in the Lab Report. Questions: 1. What does a blood pressure measurement of 110/70 mean? 2. What is your resting heart rate? 3. | Which of the following resting pulse and resting blood pressure results would be typical of a well-conditioned athlete? 72 and 150/90; 48 and 110/80; 66 and 120/95; 84 and 110/75.

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