White Blood Cells
Discover the microscopic defenders of your immune system
What Are White Blood Cells?
White blood cells, or leukocytes, are cellular components of blood that defend the body against infections and diseases. They appear white or colorless under a microscope.
Types of White Blood Cells
Neutrophils
Multi-lobed nucleus, granular appearance
Lymphocytes
Round nucleus, small size
Monocytes
Kidney-shaped nucleus, largest type