Viral Skin Infections. 1  Print. 2  PDF. 3  Email. 4  Bookmark You must be signed in to bookmark pages. Sign in now. 5  Notes You must be signed into your pro account to make notes. Sign in now. 6  Listen Listen. 7  Translate Translate.
Red blood cells are found in arteries, veins, ventricles, and the heart. If red blood cells are found outside of these areas, there is usually a problem.
The main function of red blood cells is the transport of oxygen from the lungs to the body's cells. Red blood cells contain a protein called hemoglobin that actually carries that oxygen.n each molecule of hemoglobin there are four iron atoms. Each iron atom binds with one molecule of oxygen. The iron in hemoglobin is what gives blood its red color. Thirty-three percent of a red blood cell is hemoglobin. The normal concentration of hemoglobin is 15.5 grams per deciliter of blood in men.