Topic Index

Facts About Blood

Blood Donations / Blood Banking

Blood Transfusions

Bone Marrow Transplantation

Hematology & Blood Disorders

Glossary

Blood is the life-maintaining fluid that circulates through the body's heart, arteries, veins, and capillaries. It carries away waste products and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.

Because the functions of blood are many and complex, many disorders require clinical care by a physician or other health care professional. These conditions include benign (noncancerous) disorders, as well as cancers that occur in blood.