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Circulatory System

Circulatory System. Cardiovascular/Circulatory System. At this station you will: Learn the 3 main functions of the cardiovascular system. Learn the main parts of the cardiovascular system. Determine how much blood is in a human body. Get Thinking!!.

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Circulatory System

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  1. Circulatory System

  2. Cardiovascular/Circulatory System • At this station you will: • Learn the 3 main functions of the cardiovascular system. • Learn the main parts of the cardiovascular system. • Determine how much blood is in a human body.

  3. Get Thinking!! • How many liters of blood are there in the human body? • Talk to your group about your first estimate. • Write you first estimate on your task sheet.

  4. Make an educated hypothesis. • Now find a liter container at your station. • Fill this liter container with liquid. • Humm? Would you like to change your estimate? • If so, talk to your group and make a second estimate.

  5. Keep Thinking • Now fill a container with two liters of liquid. • Do you think that is how much blood is in the human body? • Talk to your group • Now fill a container with four liters of liquid. • Do you think that is how much blood is in the human body? • Talk to your group

  6. What is our answer? • Now fill a container with five liters of liquid. • Do you think that is how much blood is in the human body? • Talk to your group • Could this be the answer?

  7. YES!! • The human body contains an estimated 5 liters of blood.

  8. Keep thinking!! How long does it take for all this blood to circulate through the body?

  9. Let’s estimate • Talk to your group. • What is your first prediction? • Write it on your task sheet.

  10. What is your final estimate? • How much time does it take for the 5 liters of our blood to circulate through the body? • 20 seconds

  11. Get the Facts • Use your textbook (Chapter 3, pgs. 78-89) or the websites below to learn about the Cardiovascular System. Record the answers to the following questions on your data sheet: • What is the function of the Cardiovascular System? (pgs. 78-79) • What are the main parts or organs of the Cardiovascular System? • Why is the Cardiovascular System also referred to as the Circulatory System?

  12. Websites and Videos • As time permits, visit a couple of websites and watch a couple of videos: • http://kidshealth.org/kid/htbw/heart.html • http://www.kidport.com/RefLib/Science/HumanBody/Heart.htm • http://yucky.discovery.com/noflash/body/pg000131.html • Watch the videos: (1) Blood Flow in the Heart and (2) Circulation • http://www.kidport.com/RefLib/Science/HumanBody/Cardiovascular/Video/HeartBloodFlowVideo.htm • Watch the videos from the textbook (chapter 3): (1) The Heart, (2) Two Loops, and (3) Blood

  13. Clean Up the Station • Reset the station’s supplies. • Go back to the first slide so the next group can begin. Back to Beginning

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