Blood flow is a pulse wave that moves out from the aorta and through the arterial branches, then is reflected back to the heart.
Blood flow is regulated locally in the arterioles and capillaries using smooth muscle contraction, hormones, oxygen, and changes in pH.
Blood flow to an active muscle changes depending on exercise intensity and contraction frequency and rate.
Cerebral circulation is the movement of blood through the network of blood vessels supplying the brain, providing oxygen and nutrients.
Blood flow to the skin provides nutrition to skin and regulates body heat through the constriction and dilation of blood vessels.
Pulmonary circulation in the lungs is responsible for removing carbon dioxide from and replacing oxygen in deoxygenated blood.
The heart pumps oxygenated blood to the body and deoxygenated blood to the lungs.
The hepatic portal system is responsible for directing blood from parts of the gastrointestinal tract to the liver.