Across
- 1. brings deoxygenated blood to the heart
- 2. brings oxygenated blood from the heart to body
- 4. receives deoxygenated blood from the body through the vena cava and pumps it into the right ventricle which then sends it to the lungs to be oxygenated
- 6. sends electrical signal to the ventricles to cause contraction
- 8. blood vessel where gas exchange occurs and were the vessel wall is one cell thick
Down
- 1. fibers that transmit electrical signals to the AVnode
- 3. can be considered pacemaker of the heart
- 5. ion that binds to troponin to initiate
- 7. sound made with then semilunar valves close
- 9. sound made when the atrioventricular valves close