The purpose of systemic circulation is to carry blood from the heart to the body. It then returns the blood back to the heart.
Some areas in your body are supplied by more than one blood vessel. These extra vessels are called collateral blood vessels. For example, there is a major collateral vessel in the thigh. This is used by cardiologists to perform a heart bypass when the heart's own vessels are blocked.
The heart's natural ability to adapt by redirection is called collateral circulation.
Collateral circulation is the formation of new blood vessels to circulate blood. Not all areas of the body have collateral circulation since it is formed by normally closed arteries.
When a collateral vessel on the heart enlarges, it lets blood flow from an opencoronary artery to an adjacent one or further downstream on the same artery. In this way, collateral vessels grow and form a kind of "detour" around a blockage. This collateral circulation provides alternate routes of blood flow to the heart in cases when the heart isn't getting the blood supply it needs. When an artery in the brain is blocked due to stroke or transient ischemic attack (TIA), open collateral vessels can allow blood to "detour" around the blockage. This collateral circulation restores blood flow to the affected part of the brain.
It is called collateral circulation.
Anastomosis
Systemic circulation. Compared with pulmonary circulation which is from the heart through the lungs and back to the heart.
Is called pulmonary circulation .
Systemic circulation. Compared with pulmonary circulation which is from the heart through the lungs and back to the heart.
Systemic circulation. Compared with pulmonary circulation which is from the heart through the lungs and back to the heart.
Pulmonary circulation - between the heart and the lungs Systematic circulation - between the heart and the rest of the body Coronary circulation - the heart itself