What are leukocytes better known as?

Leukocytes are better known as white blood cells, which are a crucial component of the immune system. Their primary function is to protect the body against infections and foreign invaders. Unlike red blood cells that carry oxygen, leukocytes play a key role in the body's defense mechanisms, identifying and destroying pathogens such as bacteria and viruses. They also have various types, including lymphocytes, neutrophils, and monocytes, each with specific roles in immunity. Understanding the role of leukocytes is essential in health science as they are involved in the body’s response to illness and infection.