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.

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.

Learn about the shape of white blood cells and the white blood cell nucleus. Learn what the different kinds of WBCs do and how to identify the types of white blood cells.

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.

Granulocytes are white blood cells that are part of the innate immune system, which means that they respond quickly to any type of infection or injury, usually within about 30 minutes.

Learn about the three types of blood cells in this bite-sized video lesson. Examine the functions of erythrocytes, thrombocytes, and leukocytes, then take a quiz.

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

The white blood cells are very important for immunological response in humans. Furthermore, white blood cells can be divided into two main types of cells: granulocytes and agranulocytes.

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 cells.

Monocytes Lymphocytes (T-cells and B-cells) Innate immune cells, called granulocytes or polymorphonuclear leukocytes, are white blood cells that have small granules made of proteins.