Across
- 4. Type of blood that doesn't contain oxygen
- 5. Receives deoxygenated blood from the upper part of the body
- 6. Things that prevent backwash of the blood in the heart
- 8. One of two large chambers that collect and expel blood received from an atrium
Down
- 1. Arteries that are on the surface of the heart
- 2. Vein that carries deoxygenated blood from the upper half of the body
- 3. Receives deoxygenated blood from the left and right pulmonary veins
- 7. A wall dividing the heart into different parts