Different components of human blood are replaced at different rates. According to the AABB, a non-profit organization that represents organizations that conduct blood transfusions, plasma is replaced within a few hours of a blood donation while the red blood cells take a few weeks to replace. Doctors usually only remove about one pint of blood during a transfusion, which represents about 10 percent of the total blood volume.Continue Reading
According to Palomar Community College, human blood contains approximately 4,000 different components. These are replaced on a regular basis by different processes in the body. For example, bone marrow produces stem cells which in turn produce red blood cells. Red blood cells live for about 4 months before they are removed and recycled by the spleen. White blood cells, by contrast, only last an average of 18 to 36 hours before they are removed. Occasional white blood cells last for up to 1 year before they are removed. Platelets, which help to form clots, only survive about 10 days before they are removed from the blood stream.
People are usually able to donate blood every 56 days. Blood donations are an important component of health care systems because to date, no synthetic substitute exists, according to the AABB.Learn more about Blood
Neutrophils are white blood cells, or leukocytes, that are found in human blood. These white blood cells are distinguishable from the others, eosinophils and basophils, because they stain easily, allowing scientists to study them. All three types of white blood cells help humans to fight infections.Full Answer >
The human blood contains five different types of antibodies, also known as immunoglobulins. They are IgG, IgA, IgM, IgD, and IgE, according to WebMD. The abbreviation Ig in its own refers to immunoglobulin, or antibody. Each antibody has a different function.Full Answer >
The red color of blood comes from the hemoglobin that makes up the majority of the mass of the cell, which allows the blood cell to carry oxygen around the body. The plasma itself is a straw color when viewed under a microscope, but the hemoglobin makes up so much of the blood cell that its red color overpowers the color of the plasma. When a red blood cell is full of oxygen, the red has a scarlet tint to it, when it has released it's oxygen its more of a dark burgundy color.Full Answer >
According to the American Society of Hematology, a healthy person can lose approximately 10 to 15 percent of the body's total blood volume without experiencing serious medical problems. Blood volume in an individual depends on gender, size, age and other factors; however, generally, an average-size woman has approximately 9 pints of blood in her body, while an average-size man has about 12 pints.Full Answer >