HEART

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Across
  1. 3. The __________ artery carries blood from the heart to the lungs
  2. 6. Rate Measure of the number of heartbeats per minute
  3. 7. are Tiny blood vessels where the exchange of nutrients and oxygen occurs
  4. 8. The movement of blood through the body
Down
  1. 1. A structure that ensures blood flows in one direction in the heart
  2. 2. The lower chambers of the heart
  3. 3. The rhythmic beating or throbbing of the heart
  4. 4. One of the upper chambers of the heart
  5. 5. The largest __________ in the human body
  6. 6. is the main function of the heart.