Your heartbeat
Blood flows away from the heart and is measured as blood pressure. This is a measure of the passage or flow and the resistance of the flow in the arteries.
The pulmonary or pulmonic valve (a semilunar valve) controls blood flow from the right ventricle to the "pulmonary trunk" that branches into the two pulmonary arteries carrying blood to the lungs.
blood pressure
blood pressure
Blood pressure
triscupid valve
Blood flow is faster in arteries than in veins. Blood flow in veins is lower pressure.
Maintaining blood pressure.
white blood cells(wbc)
Clots may form in theses narrowed arteries and block blood flow high blood cholesterol levels can cause hardening of the arteries at a younger age.
The blood flow throughout the body is primarily controlled by the autonomic nervous system, which consists of the sympathetic and parasympathetic nervous systems. These systems regulate blood vessel constriction and dilation to adjust blood flow based on the body's needs. Hormones such as adrenaline and noradrenaline also play a role in controlling blood flow through their effects on blood vessels.
Arteries flow away from the heart. That's a technical answer. Some blood tubes that look like arteries flow into the heat to nourish it. Of interest is the pulmonary artery, the only artery to carry un-oxygenated blood. It carries blood to the lungs where it is oxygenated.