BLOOD SUPPLY blood supply in the organs of the human body in order to provide oxygen to the cells for their survival and proper functioning. The lack of oxygen is called ischemia and is usually produced by obstruction or narrowing of arteries and vessels due to the accumulation of plaque (cholesterol), which reduces the useful diameter, but it is not always due to a disease, as it can be generated by violent exercise, a tourniquet. Ischemias are of two types: embolism and thrombosis. The organ with the most irrigation is the skin and the most important is the brain (and heart). An ischemia can lead to a myocardial infarction or a cerebral infarction with serious consequences, such as necrosis of the affected tissues, or even death. It is common to suffer from insufficient peripheral blood supply, in which case you suffer from pains in the extremities, tingling, cramps, a lot of cold or heat, sharp pain or inflammation
