White Blood Cells

White blood cells, also known as leukocytes, are an essential part of the immune system. They are produced in the bone marrow and are involved in defending the body against infections and foreign substances. There are several types of white blood cells, each with specific functions in the immune response.

Types of White Blood Cells

• Neutrophils: These are the most abundant type of white blood cells and are the first responders to infections. They engulf and destroy bacteria and other foreign particles.
• Lymphocytes: There are two main types of lymphocytes - T cells and B cells. T cells are involved in cell-mediated immunity, while B cells produce antibodies to neutralize pathogens.
• Monocytes: Monocytes are responsible for engulfing and digesting dead or damaged cells and pathogens.
• Eosinophils: Eosinophils are involved in fighting parasitic infections and are also implicated in allergic reactions.
• Basophils: Basophils release chemicals such as histamine in response to allergens and play a role in the inflammatory response.

Functions of White Blood Cells

White blood cells play several crucial roles in the immune system, including:

• Engulfing and destroying pathogens
• Producing antibodies
• Regulating the inflammatory response
• Identifying and removing abnormal or damaged cells

Study Guide

Here are some key points to remember about white blood cells:

1. What are the main types of white blood cells and their functions?
2. How are white blood cells produced in the body?
3. What is the role of white blood cells in the immune response?
4. How do white blood cells defend the body against infections?
5. What are the differences between the various types of white blood cells?

Understanding the role and function of white blood cells is essential for comprehending the body's immune response and the maintenance of overall health.