blood in our body serves as a connecting element for the livelihoods of every cell, every organ.Its movement in the body is called circulation, through which oxygen, hormones and nutrients come to all tissues and organs, and from there with the help of decomposition products derived waste materials.In addition, the blood carries the body temperature regulation, and protects it from harmful microbes.Continuity provide circulatory blood vessels and the heart, circulatory system components, all functions are strictly coordinated.
blood vessels, total length of which in aggregate amounts to 100 thousand. Km and penetrate the human body like a giant spider web, allowing every cell saturated with oxygen.Blood flow occurs directly through the arteries, veins and capillaries.
arteries - a thick-walled vessels that the blood flow comes from the heart.They are very flexible and, depending on the amount of blood the heart pumping can expand or contract.Arteries carry blood enriched with oxygen inhaled, that is "clean".Vienna, in contrast, produces the outflow of blood filled with carbon dioxide.As it moves blood to the heart.Venous walls less thick than the arteries.Capillaries are the smallest blood vessels with a very thin wall through which the return of blood into the cells of oxygen and nutrients, and transfer of carbon dioxide and waste products from the cells into the bloodstream.
largest (in cross-section reaches 5 cm) in a blood vessel of the human body - the aorta which branches into arteries, arteries - for arterioles (smaller vessels), and those in turn capillaries.
impetus to the movement of the blood is the heartbeat.The movement of blood occurs in two circles: small (pulmonary) and systemic circulation, continuous flow.When driving on a small circle, she is released from carbon dioxide and oxygenated.In a large circle, on the contrary, it gives oxygen and carries nutrients, taking carbon dioxide and waste products.
human blood vessels play an extremely important role in the life of the organism.They are not in vain called the "Highway of Life": tying together virtually all cells of the body, they provide well-coordinated his work.
scientists claim that the blood vessels are aging and wear a little before the other systems of the body.And the people disparagingly refers to when and what to eat and drink, if not actively involved in sports, that is, than randomly his life, the faster the biological waste and various waste products are deposited on the walls of blood vessels.Slagging vessels leads to deterioration of blood supply to the body, which, in turn, causes the tissues lack of essential nutrients.So we all know developing the disease, and so the body is aging.
Cardiovascular disease along with diabetes and cancer to date, firmly hold the palm among the most dangerous and widespread diseases.The group of diseases of the blood vessels and the heart include the following:
- ischemic heart disease,
- rheumatic heart disease,
- disease of the blood vessels of the brain,
- congenital heart disease,
- pulmonary embolism,
-deep vein thrombosis,
- peripheral arterial disease.
acute diseases such as strokes and heart attacks occur mainly as a result of blockage of blood vessels, which then prevents the blood flow to the brain or heart.The cause blockages - fat deposits on the inner walls of the blood vessels that supply blood to the heart or brain.
too much difficulty in detecting vascular disease and heart is their asymptomatic, therefore, timely diagnosis will not only protect against serious complications, but in some cases - to save lives.
