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Biology LibreTexts

5: Cardiovascular System

  • Page ID
    25222
  • In this activity, students will learn how to measure heart rate accurately. Then, students will design and carry out an experiment to test the effects of an activity or stimulus on heart rate, analyze and interpret the data, and present their experiments in a poster session.

    • 5.1: Heart Rate Protocol
      Each time the heartbeats, blood is pumped into the arteries. As the blood surges into the arteries during a heartbeat, each artery stretches and bulges. This brief bulge of the artery is called a pulse. To measure heart rate you will count the number of pulses in the artery in the wrist in a 30-second interval. After you learn how to measure heart rate accurately, your group will design an experiment to test how a stimulus or activity affects heart rate.
    • 5.2: Heart Rate Teacher's Preparation Notes
      In this activity, students will learn how to measure heart rate accurately. Then, students will design and carry out an experiment to test the effects of an activity or stimulus on heart rate, analyze and interpret the data, and present their experiments in a poster session. If your students are not already familiar with the cardiovascular system, you may want to use the diagrams shown on the last page of this document in your discussion of the questions on page 1 of the Student Handout.