Lab 2a Worksheet Name: Homeostasis, Negative Feedback and Normal Range Reading: Silverthorn 8e pp. 9-18 Student Learning Objectives: Define the term homeostasis. Define the term set point. Explain how a normal range of values for heart rate is obtained. Be able to discuss the significance of these values. Explain how exercise affects heart rate. Compare resting heart rates in physically fit and sedentary students. Compare HR before and after a single bout of exercise. Normal Resting Pulse Rate Procedure Using your index and middle fingers against the radial artery in your wrist find your pulse. Record the number of beats per 15-second interval in the data table below. Repeat this procedure for a total of 10 measurements. Calculate the average beats per 15-second interval. Convert beats per 15-second interval into beats per minute (BPM) by multiplying by 4. Record the number of beats per minute in the data table below. Calculate the average beats per minute. Calculate the range by subtracting the lowest value from the highest value. Graph your resting pulse rate in beats per minute. Once calculated make sure to add your resting pulse rate to the class data on the spreadsheet