White blood cells, also known as leukocytes, are crucial components of the immune system, defending the body against infection and disease. There are five main types, each with a unique role:
1. Neutrophils
- Function: These are the most abundant white blood cells and act as the body's first responders to infection. They kill and digest bacteria and fungi. [Source: University of Rochester Medical Center, Cleveland Clinic]
2. Lymphocytes
- Function: Lymphocytes are key players in adaptive immunity. They create antibodies to fight against bacteria, viruses, and other harmful invaders. [Source: University of Rochester Medical Center]
3. Monocytes
- Function: Monocytes have a longer lifespan than many other white blood cells. They help break down bacteria and mature into macrophages which engulf and digest pathogens. [Source: Provided Reference]
4. Eosinophils
- Function: Eosinophils target parasites and are involved in allergic reactions. They release enzymes that help combat these threats. [Source: Cleveland Clinic, Verywell Health]
5. Basophils
- Function: Basophils release histamine and other chemicals involved in inflammation and allergic responses. [Source: University of Rochester Medical Center, Cleveland Clinic]
Each type of white blood cell plays a vital role in maintaining overall health and fighting off infections. Their combined actions provide a comprehensive immune defense.
