The Circulatory System

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The Circulatory System
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Warm Up

• Write down three things you can do to keep your
  heart healthy

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The Circulatory System

• This system carries food and oxygen to all the
  cells of the body.
• It is made up of the heart, blood blood vessels.

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The Circulatory has 2 big jobs

• Big job 1 Carrying Food, Water, Oxygen.
• The circulatory system has the task of delivering
  the necessary goods to the cells. Its like
  getting the newspaper each morning.

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• Big Job 2 -Removing Wastes from the cells.
• In our everyday activities we create waste. The
  wastes cannot stay in the cells. They would build
  up and prevent the cells from doing their job.
• The circulatory system carries the waste to other
  parts of the body where they are filtered and
  removed from the body

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The Heart

• The heart is a muscle. Its job is to pump blood
  to all of the cells in your body.
• The heart is the strongest muscle in the human
  body.
• It pumps the blood to your brain cells, nerves,
  and bone cells.
• It pumps 24 hours a day without a break.

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FACTS ABOUT HEART

• The Heart is about the size of your fist and is
  located in the middle of your chest.
• Its upper chambers are the right atrium and left
  atrium. The lower chambers are the right
  ventricle and the left ventricle.
• Arteries pump oxygen rich blood to your body
  away from heart
• Veins carry waste filled blood back to the heart
  and then to the lungs, to be cleaned and sent
  back out the the body.

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Terms

• Red Blood Cells- Carry oxygen carbon dioxide to
  from the lungs. Produced in the bone marrow.
• White Blood Cells- Destroy bacteria and are
  produced in the spleen.

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Terms

• Blood Platelets- Aid blood in clotting to held
  stop bleeding.
• Plasma- Liquid part of blood. About 90 water
• Blood is made up of 45 cells and 55 plasma

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REVIEW

• How is the circulatory system similar to a paper
  boy?
• How big is your heart and were is it located?
• What blood vessel carries blood to your cells,
  away from your heart?
• What blood vessel carries blood back to your
  heart?

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Review continued

• Aid in blood clotting?
• Which blood cells carry oxygen and carbon dioxide
  to and from the lungs?
• Which blood cells destroy bacteria and where are
  these cells produced?
• What is the liquid part of blood called?
• Name 3 parts of the circulatory system.
• Name 3 blood vessels.

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Capillaries

• Capillaries are extremely small vessels located
  within the tissues of the body that transport
  blood from the arteries to the veins.