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.
1 CAPILLARIES are blood vessels in the walls of the alveoli. 2  Blood passes through the capillaries, entering through your PULMONARY ARTERY and leaving via your PULMONARY VEIN. 3  While in the capillaries, blood gives off carbon dioxide through the capillary wall into the alveoli and takes up oxygen from air in the alveoli.t each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide. Your bloodstream then carries this waste gas back to the lungs where it is removed from the blood stream and then exhaled. Your lungs and respiratory system automatically perform this vital process, called gas exchange.