Enlightened witnesses can be those who themselves have risen from the depths. Individuals who have overcome great odds and great adversity. Sometimes this is the very thing required to create lasting empathy and feeling. For when we identify, we can extend ourselves that much more.
The Cardiovascular system links all the parts of our body and consists of the heart, blood vessels, and blood. The Cardiovascular system carries needed substances to cells and carries waste products away from cells.
Blood vessels. organs of the cardiovascular system that form a closed circuit of tubes that carries blood from the heart to the body cells and back again. They are arteries, arterioles, capillaries, venules, and veins.hey have a single layer of epithelial cells. Walls are semipermeable, and substances in blood are exchanged for substances in the tissue fluid surrounding the cells. Provide the vital function of exchanging gases, nutrients and metabolic by-products between blood and tissue fluid.