The presence of blood protein molecules, such as
albumins and
globulins, are critical factors in maintaining the proper fluid balance between cells and extracellular space. Proteins are present in the capillary beds, which are one-cell-thick vessels that connect the arterial and venous beds, and they cannot flow outside the capillary beds into the tissue because of their large size. Blood fluid is pulled into the capillary beds from the tissue through the mechanics of oncotic pressure, in which the pressure exerted by the protein molecules counteracts the
blood pressure . Therefore, blood proteins are essential in maintaining and regulating fluid balance between the blood and tissue. The lack of blood proteins results in clinical
edema , or tissue swelling, because there is insufficient pressure to pull fluid back into the blood from the tissues. The condition of edema is serious and can lead to many medical problems.
Read more: Protein - food, nutrition, deficiency, needs, body, diet, absorption, health, fat, nutrients, carbohydrates, vitamin, amino, acids, weight, water, Amino Acids http://www.faqs.org/nutrition/Pre-Sma/Protein.html#ixzz1EFOko1kP