The Heart

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Across
  1. 2. The number of chambers in your heart.
  2. 4. On average a woman's heart beats _____________ than a man's heart.
  3. 5. Structures in your heart that keep blood flowing in one direction.
  4. 8. Type of muscle that is found in your heart.
  5. 10. The heart is about the size of your _____________.
  6. 11. Heart cells have an abundance of what organelle that enables the heart to have the energy needed to keep the it continually beating.
  7. 13. The average person's heart beats 42 _____________ times per year.
  8. 14. Your heart is a _____________ that pushes blood throughout your body.
Down
  1. 1. Blood flows through your heart in one _____________.
  2. 3. Heart muscle needs special characteristics because it never _____________.
  3. 5. Part of the heart provides powerful contractions that push blood throughout the body.
  4. 6. The last heart chamber that oxygenated blood travels through before it gets delivered to the rest of the body.
  5. 7. The first heart chamber deoxygenated blood enters as it travels back to the heart from the body.
  6. 9. The average person's heart beats 115,000 times per _____________.
  7. 12. An average man's heart weighs 10 _____________.