What is Tunica media?
People's artery and veins and most animals are made up of several different layers or "tunics". The Tunica media is the middle layer. It is surrounded by tunika Adventia or Tunica externa and under the tunika Intima. The Tunica medium contains soft elastic tissues and nerves are located in the largest arteries. It is usually the strongest of the layers and is the most widest, which makes it an essential part of effective and consistent blood transport.
Blood is constantly pumped by the heart, distributed to all parts of the body and returned to the heart in the systematic perimeter. The perimeter is allowed by veins and arteries, each acting as a number of pipes or blood pipes. The cross -section of any tube reveals several layers of tissue and muscle, the highest is the tunica medium.
The arteries and veins differ in size. Some are very small, like those in your fingers and legs; These arteriols are usually referred to as arteriols. Others, especially those who are close to the heart, can be quite large. May be primarily muscular or primarily e eLastic functions. Regardless of the size, the walls of each are almost identical.
Blood transport is more than just transfer - changes in blood pressure, adrenaline and stress can cause blood to go through faster or slower body. The blood flow rate is partially regulated by the rigidity and narrowing of the arteries and veins through which the blood passes. Media Tunica is primarily responsible for limiting events.
All layers of arteries and veins contain elastic fibers, but most of the elastic and mobile properties are located in the Tunica medium. In the arteries, the Tunica media consists mainly of smooth muscle and connective tissue, which contains elastic and collagenic fibers. The veins generally do not contain muscle fibers, but the tunical medium veins consists of similarly elastic fibers and supple cells. In the middle layer, the stroke of narrowing and moving the vein and artery is controlled.
Tunica media are the most significant and nEjsil in larger arteries surrounding the hearts such as aorta. These arteries are primarily muscular, while smaller arteries and arteriol are generally primarily elastic. Larger arteries need more narrowing and relaxation forces than smaller blood transport channels and must be strong enough to contain and distribute a large amount of blood. For heart health and blood pressure consistency, it is also necessary to control blood flow directly into and out of the chambers of the heart.
Larger arteries may also contain nerves that carry electrical signals to the surrounding tissues and tunics and instruct them when to limit them. These nerves are placed inside the smooth muscles of the Tunica media. Nerve control is just another way that the Tunica media can help maintain a consistent blood flow in the pulmonary system of arteries and veins of the body.