Learn about blood cells. Discover the red blood cell's function and the white blood cell's function. Also, discover the five types of white blood cells.

White blood cells have many different shapes. Macrophages are the largest white blood cells. Dendritic cells have protrusions that extend out of their cell body to facilitate their function.

Learn about leukocytes, or white blood cells. Understand what leukocytes are, the types of white blood cells, and the different white blood cell functions.

Learn to define white blood cells. Learn to describe the different types of white blood cells and their functions. Find where the white blood cells come from.

A granulocyte is a type of white blood cell that contains small particles called granules, which contain enzymes that help to kill pathogens and fight infections. There are three types of ...

A macrophage is defined as a type of white blood cell (leukocyte) that plays a major role in the body's immune system and inflammatory response. The word macrophage literally means 'big …

Study leukocytes, or white blood cells, with the help of this bite-sized yet informative video lesson. Then, take the optional quiz that follows for practice.

Monocytes are very large blood cells that are about 14-20 micrometers in diameter, which makes them approximately twice as large as a red blood cell and bigger than all the other white blood …

Learn about white blood cells, also known as leukocytes, including their types and function in the immune system. Discover their role in combating pathogens, the physical appearance of white …

Learn the facts about red blood cells. Understand what red blood cells do, the life and anatomy of red blood cells, as well as what red blood cells carry.