The heart.
its part of the circulatory system that the heart pumps blood to all parts of the body
The circulatory system
The main organ of the circulatory system is the heart.The heart pumps blood tothe other parts of the body.
the circulatory system. it is a blood organ that pumps blood.
Heart
it pumps blood
The cardiovascular system pumps blood throughout the body.The Nervous System of course.
your circulatory system
The circulatory system is about the heart pumping blood around your body. The parts the system has are the heart, which pumps blood to the lungs, giving the blood oxygen, and then sends the blood around your body in blood vessels (more specifically, arteries, veins capillaries).So the important parts are the heart, lungs, and blood vessels or arteries, veins and capillaries
The main component is the Heart which pumps the blood throughout the body. This blood is carried to various parts of the body by Arteries and Veins.
a bloody one
because you muscles need more blood so the heart pumps more blood