Diagram of the Human Circulatory System (Infographic) Infographics. ... (4.7 to 5.6 liters) of blood, which is made up of plasma, red blood cells, white blood cells and platelets.

Red blood cells (RBCs) play a central role in keeping your body energized and functioning. They carry oxygen from your lungs ...

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But some cells, such as skin cells or blood cells are dividing all the time. When cells become damaged or die the body makes new cells to replace them. This process is called cell division. So, a cell ...

A normal red blood cell count ranges between 4.5 and 5.3 million cells/μL for males ages 12 to 18 years, while the range is 4.1 to 5.1 million cells/μL for females of the same age group. How do ...

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. Next page ...

People with sickle cell anemia can have low hemoglobin levels, which can cause pain. Also, sickle cell anemia may change the structure of hemoglobin. This can affect how much oxygen and blood a ...