The anatomical concepts associated with a vascular system is a study that expounds on what we call the cardiovascular system, or simply the circulatory system. The vascular system would therefore be also called the circulatory system for a better explanation is consisting of the following: Heart-which is used a pumping unit, Arteries which form part of closed system of vessels which are like veins and capillaries and the lymphatic system. The process is initiated in the heart which pumps the blood around a closed circle of circuit of vessels as it goes through time and again the various circulations of the body organs.
It is important to note that for the vascular system to maintain a stable condition for the circulation of blood to be optimised, it will depend on the continuous and controlled movement of blood through many miles of capillaries that permeate all organs and tissues of the body. It is in the capillaries that most blood functions are performed which would include transportation of nutrients and other essential materials as well as removal of waste products from the body.The lymphatic system which arises from the lymph vessels is used to carry the lymphatic fluid; a clear colourless fluid that contains water and blood cells. The lymphatic system is used to protect as well as maintain the body fluid environment besides filtering and mopping up lymph far from each region of the body.
In addition to the circulating of blood and lymph throughout the body organs, the vascular system functions as an important component of other body systems whose examples include:
Respiratory system. This is used when blood flows through the capillaries in the lungs it picks up oxygen in the process and carbon dioxide is given up. The carbon dioxide is expelled from the body through the lungs, and the oxygen is taken to the body tissues by the blood.
Digestive system. The food we eat is taken to the stomach where digestion start taking places and the process continues to small and large intestines. Thereafter the digested food is absorbed when blood flows through the intestinal capillaries and picks up nutrients, such as glucose (sugar), vitamins, and minerals. These nutrients are delivered to the body tissues by the blood.
Kidneys and urinary system. The waste substances materials from the body tissues are filtered out from the blood as it flows through the kidneys. Then the waste material leaves the body in the form of urine or excrement.
Temperature control. The regulation of the body’s temperature takes place or assisted by the flow of blood among the different parts of the body. The heat produced by the body tissues as they go through the processes of breaking down nutrients into energy is intense, at the same time making of new tissue involves use of energy, and final giving up waste matter demands use of energy and giving out of heat.
However, at times the vascular system becomes compromised, and this leads to vascular diseases which comprises of conditions that affects the arteries and veins. Most often, vascular disease affects blood flow, either by blocking or weakening blood vessels, or by damaging the valves that are found in veins. Predominantly the body organs and other body structures also fail and get affected by the damage caused by vascular disease which do lead to decreased or completely blocked blood flow to the body organs.
Some of the vascular diseases like atherosclerosis is a build-up of plaque due to deposit of fatty substances, cholesterol, cellular waste products, calcium, and fibrin in the inner lining of an artery. The initial stage and progress of atherosclerosis is exactly not known by scientist and medical practitioners. Atherosclerosis is a slow, progressive, vascular disease that may start as early as at childhood. However, the disease itself has the potential to progress rapidly. The general characteristic is the build-up of fatty deposits along the innermost layer of the arteries. When the disease process progresses, plaque may form. This thickening narrows the arteries and hence leads to decreased blood flows or completely block of the flow of blood to body organs and other body tissues and structures.