Blood circulation is the flow of blood from the heart to all body parts and back to the heart.Blood circulation or circulatory system, also called cardiovascular system, is one of three mainsystems in human body which consist of organs and tissues.
Blood circulation is essential for a healthy body. Blood circulation is important because itfacilitates the following processes to take place in the body:
1. Every cell in the body needs to received oxygen and nutrients. Blood rich in oxygen is sent tothe body organs, tissues and cells to nourish them through blood circulation.
2. It enables transportation of waste products from body tissues to excretory organs so as to beremoved from the body.
3. Protects the body against diseases and infections through the white blood cells.
4. Maintains body temperature by distributing body heat evenly from the liver and spleen to allbody parts.