What is arteriole?

arteriole is a small blood vessel that forms a connection between small arteries and capillaries. Arterioles are an important part of the circulatory system. These blood vessels are full of oxygenated blood from the heart, which has a bright red look, unlike a blue blood of blood that is transmitted towards the heart and lungs, so it can be reoxygenorized. They have thin muscle walls that can be closed to reduce blood flow through arteriole or relaxed to increase blood flow. The arteriols are supplied by small arteries and small arteries obtain blood supply from large arteries of the body. Blood passes from arteriol to capillaries. The pores in the walls of the capillaries allow the replacement of nutrients and waste that are kidnapped in the venules connected on the other side.

Arterioles play an important role in determining how much blood is distributed to organs and tissues. The body produces vasodilators and vasoconstrictors, compounds that extend and contrast the blood vessels to regulate blood movement through the circulatory system. Blood supply can beIncreased in situations such as injuries where sufficient blood is needed or limited if the body wants to divert sources elsewhere. This also has an impact on blood pressure. When arteriols are relaxed, blood pressure is low because there is less resistance.

The

circulation system is a highly efficient and well oiled machine. In addition to supplying nutrients and waste storage, blood is also involved in the function of the immune system and the response to injury. In a very short time, signals can be sent to redirect blood supplies, increase blood supply to a given area or bypassing of blockage to deliver the blood -plast of tissue that is endangered by ischemia or lack of oxygen.

One problem that may develop in arteriol is precipitation, leading to increased blood pressure in addition to limiting blood supply to the area powered by an arteriole obstacle. Diseases involving circulatory system can reduce circulation or damage to individual arteriols, leading to tissue death and other problems. Mikrocirkulace zahrnujícíArterioles, capillaries and venules are critically important for the health of each part of the body from the skin to the spleen.