Circulatory System

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Across
  1. 3. The diameter of a __________ is less than the diameter of a _______ (Format is _____/______)
  2. 4. The pump
  3. 7. The system responsible for transporting oxygen and nutrients to cells in the body.
  4. 9. The Circulatory system stretches about ________ (Number and unit of measurement)
  5. 10. Blood travels from the lungs and the rest of the body back to the heart through these
  6. 11. Carries blood away from the heart to almost all parts of the body
Down
  1. 1. Fluid in which materials are transported.
  2. 2. The average heart is the size of a _______
  3. 3. The other name for the Circulatory system
  4. 5. Takes the blood to the body’s cells before it goes into the veins and into the heart
  5. 6. Tubes to carry the blood.
  6. 8. Even when resting,the heart works _______ as hard as the leg muscles of someone sprinting