ANSWER -
BLOOD CIRCULATION OR BLOOD CIRCULATORY SYSTEM OR
CARDIOVASCULAR SYSTEM :
- this is the system in which movement of blood through the blood
vessels of body by the help of heart which pumps blood.
- Take part in nutrients and oxygen transportation to the cells
and to all body parts.
- Major arteries take part in blood circulation is aorta which
branches into the other arteries, carries blood to body parts.
Arteries can carry blood out of the heart and Veins can carry blood
into the blood.
- Veins carry deoxygenated blood to the heart where arteries
carry oxygenated blood to the body parts.
- Circulatory system also carries hormones to cells, they help in
removal of waste products such as Carbondioxide.
- Blood circulation is important because oxygen should reach
brain and other body organs to work. It helps to keep skin
healthier and helps in cell growth.