Across
- 2. allow blood to flow in only one direction in the heart and control the flow of blood by opening and closing
- 4. this system works as the transportation highway for the body. it consists of the heart, blood, and blood vessels. it transports substances such as oxygen, carbon dioxide, and nutrients in the body
- 5. blood vessels that carry blood away from the heart
- 8. flow of blood from the heart to the lungs and back to the heart
- 9. where gas exchange takes place, oxygen is taken and carbon dioxide is released
- 10. absence of normal cardiac rhythm
- 11. blood vessels that carry waste and carbon dioxide rich blood from the organs of our body to the heart
Down
- 1. a hollow, muscular organ that pumps blood throughout the body
- 3. circultaion that supplies blood to all the body except to the lungs
- 6. connect veins and arteries
- 7. a condition in which blood flow to part of the heart muscle is blocked, causing heart cells to die