Across
- 3. The study of the heart and its disorders.
- 4. When stimulation is increased this branch of the nervous system lowers the heart rate.
- 6. AKA the pacemaker node
- 7. Short, thick, branched muscles of the heart.
- 9. The left and right coronary arteries from this blood vessel.
- 10. The blunt inferior point tip of the heart.
- 13. This valve regulates the openings between the atria and the ventricles.
- 15. The thickest layer of the heart.
- 16. the broad flat superior top portion of the heart.
Down
- 1. the circuit that carries blood from the right ventricle to the lungs for gas exchange and returns it to the left atrium.
- 2. This cavity is the space between the visceral and parietal layers of the pericardium.
- 4. The double-walled sac enclosing the heart.
- 5. AKA the left atrioventricular valve.
- 8. Layer of the heart that covers the valve surfaces.
- 11. The outermost layer of the heart.
- 12. the side of the heart that supplies blood to the systemic circuit.
- 14. The rhythm when a normal heart rate is established by the SA node.