Across
- 4. This carries oxygen, nutrients, and waste products around the body.
- 6. This type of blood does not contain oxygen.
- 8. The heart is made of ________.
- 10. These carry blood AWAY from the heart.
- 11. There are _______ chambers in the heart.
Down
- 1. This type of blood contains oxygen.
- 2. These prevent blood from flowing backwards.
- 3. The number of times your heart beats in one minute is known as your ______ Rate.
- 5. This type of blood vessel has a very thin wall, only one cell thick.
- 7. There are _______ types of blood vessels which carry blood around the body.
- 9. These carry blood IN to the heart.