Across
- 2. The human heart is the size of an adult ____.
- 3. The heart lies in this cavity.
- 6. A lower chamber of the heart is called this.
- 8. The Pulmonary ____ takes blood from the lungs to the heart.
- 9. An upper chamber of the heart is called this.
- 10. The middle, muscle layer of the heart wall.
- 11. The Pulmonary ______ takes blood from the heart to the lungs.
- 13. The blood flows from the Venae Cavae into which atrium?
- 14. The name of the valve between the left atrium and left ventricle.
Down
- 1. This septum is a muscular wall between the two ventricles.
- 4. This ventricle has the thickest walls of all four heart chambers.
- 5. The inner layer of the heart and valves, smooth layer of endothelial cells.
- 7. The name of the valve between the Right atrium and Right ventricle.
- 11. The largest artery in the body.
- 12. This septum separates the right and left atrium.