There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...

The human blood system is in a constant state of turnover. First-line immune defenders, like neutrophils, need to be replaced after just four to eight hours, platelets can last a week, red blood cells ...

Researchers from UC San Francisco have discovered blood stem cells in the lungs, disrupting a decades-old belief that new blood cells were only made in the bone marrow. Conventionally it was thought ...

Most humans fall into one of four blood groups — A, B, AB or O. Ordinarily, your blood type makes very little difference in your daily life except if you need to have a blood transfusion. Other WRAL ...

Immature ganulocytes, also called myeloblasts, are a type of young white blood cell. Unusual amounts of myeloblasts usually occur due to problems with bone marrow, such as certain types of blood ...

Imagine being able to count the different types of blood cells being formed inside the tiny bones of a mouse and pinpointing the strings and clusters of cells within the bone marrow that are ...

Blood tests are helpful for monitoring your overall health. But research suggests they can also give us clues about the ...

Red blood cells carry oxygen from the lungs around the body. They then carry carbon dioxide from around the body back to the lungs. These cells are an important component of blood. However, a range of ...