Albumin and globulin are the two major proteins found in the blood. Albumin is produced in the liver and is important for transporting many molecules in the blood and making sure that the blood does not leak into the tissues of the body.lbumin and globulin are the two major proteins found in the blood. Albumin is produced in the liver and is important for transporting many molecules in the blood and making sure that the blood does not leak into the tissues of the body.
The arterioles then divide further into capillaries. Capillaries are the smallest blood vessels and their walls are only one cell thick which allows diffusion between the blood and cells to occur. Nutrients and oxygen from the blood diffuses through the capillary walls into the tissues that need it. This is aided by the relatively high blood pressure that also squeezes the oxygen and nutrients through the capillary wall and into the cells of the tissue. At the same time carbon dioxide and other waste products re-enter the capillary in order to be processed and removed from the body.
Pulmonary Circulation. The circulation of the blood through the lungs. Pulmonary Veins. The veins that return the oxygenated blood from the lungs to the left atrium of the heart. Superior Vena Cava. The large vein that carries blood from the head, neck, arms, and chest to the heart.tria. The chambers of the heart, to which the blood returns from the circulation. Capillaries. The smallest of the body's blood vessels. Oxygen and glucose pass through capillary walls and enter the cells. Waste products such as carbon dioxide pass back from the cells into the blood through capillaries.