Learn more about red blood cells, transporters of oxygen throughout your body, including vital organs and tissues.

A breakthrough in the understanding of how mammals create red blood cells could lead to opportunities for artificial blood to ...

An average adult has 5 to 6 quarts (4.7 to 5.6 liters) of blood, which is made up of plasma, red blood cells, white blood cells and platelets. The heart is a muscular organ with four chambers.

Scientists have uncovered a new biological mechanism behind tissue and organ damage in low-oxygen conditions like heart attacks, strokes, and severe COVID-19. Bursting red blood cells—not ...

What are blood cells? Find out how red and white blood cells and platelets are transported through the body in this Bitesize KS2 Science guide.

The spleen plays a role in the immune system and the blood. We will explain what the spleen does, the types of cells involved, and what happens when it goes wrong.

THE surface of the red blood cell has been studied extensively by means of the electron microscope. This requires replica techniques or the preparation of haemoglobin-free “ghosts”; the ...

Red blood cells are disc-shaped cells with no nucleus. They are very small but their flattened shape gives a relatively large surface area which allows rapid diffusion of oxygen.

Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

lymphoid stem cells Myeloid stems cells become monocytes, red blood cells, platelets and white blood cells called granulocytes. Neutrophils are one type of granulocyte. Lymphoid stem cells develop ...

Learn about white blood cells, which help your body fight inflammation and infections. A high or low white blood cell count may be associated with certain health conditions.