What are vascular endothelial cells?
Vascular endothelial cells are flat cells that form the inner lining of the main blood vessels. These cells help regulate blood flow. Their smooth surface allows smooth blood flow smoothly. They also help regulate blood pressure and prevent coagulation.
The main blood vessels consist of three layers. The outer layer is called tunica adventitia. This layer is elastic and is made of collagen and elastin. It also contains nerves and small blood vessels that supply the wall of the blood vessels with oxygen. Elasticity allows the containers to expand and complicate as needed to maintain blood flow.
The middle layer is known as the Tunica medium and is composed of smooth muscles. The inner layer is an intima tunica, the only layer of vascular endothelial cells, also known as an endothelium. The capillaries consist only of intima tunica. This allows easy replacement of gases, nutrients and waste products through their walls. It is produced by endothelial cells and causes muscles tothe blood vessels release. One of the factors that causes the production of endothelial nose is physical activity.
Vascular dilatation is important during activity to increase blood pressure too much. The second function of the edothelial nose is to prevent platelets from holding together in vessels. Damage to vascular endothelial cells causing the decrease in endothelial nose is a risk factor for atherosclerosis.
also produced by endothelial cells is vasoconstrictive endothelin. Endothelin production is stimulated by hormones and causes the vascular muscles to withdraw. The stimulating plate factor is also a vasoconstrictor produced by vascular edothelia cells. In addition to limiting the blood vessels, the factor causes plate plate plates. Overproduction of vasoconstrictors can lead to hypertension and heart failure.
Trombin is a coagulant that causes blood to bending. After it is tieting with endoHowever, it becomes an anticoagulant. Vascular endothelial cells contain thromine receptors where they bind to them.
Too many or too few receptors may be the result of genetic factors and can cause clotting disorders. Injured endothelial cells can produce a procoagulant called a tissue factor (TF). The accumulation of atherosclerosis contains a tissue factor.
endothelial cells produce chemicals that regulate the flow of leukocytes and plates. Injuries or infection can cause leukocytes and platelets to bind to vascular endothelial cells and each other. Too much binding seems to be in inflammatory disorders.
Vascular endothelial cells play an important role in homeostasis. Increasing or decreased chemicals produced by these cells may have serious adverse effects on the body. The healing of the damaged endothelial cells is partially genetic. Some people are more susceptible to diseases such as atherosclerosis and haemophilia,which are partly caused by problems with endothelial cells.