Across
- 4. The relaxation of blood vessels which increases their diameter
- 6. blood vessels that carry blood back to the atria they are less elastic than arteries
- 7. The largest artery in the body the aorta originates from the left ventricle of the heart and extends down to the abdomen where it branches off.
- 9. The lower chamber of the heart they receive blood from the atria which they pump out into the arteries
- 10. The inner layer of the heart wall.
- 12. The thick middle layer of the heart wall that is mostly made of cardiac tissue
- 13. Elastic vessels able to carry blood away from the left under high pressure
- 14. Microscopic vessels that link capillaries to vein.
Down
- 1. The outer layer of the heart wall
- 2. A membranous structure that encloses the heart and proximal ends of the large blood vessels and that consist of double layers.
- 3. The contraction of a heart structure
- 5. The term used to refer to the sinoatrial node (SA node)
- 6. Thickness or stickiness the resistance of fluid to flow in a biologic fluid viscosity is caused by the attraction of cells to one another
- 8. The upper Chambers of the heart they receive blood returning to the heart
- 11. The relaxation of a heart structure