What is immunology?

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Immunology is a scientific discipline that focuses on the study of the immune system , a complex set of cells, tissues and molecules designed to protect the body against external threats , such as infections and diseases . In this article we are going to give you the keys to know what immunology is, how the immune system works and why it is essential to maintain our health. What is the immune system? The immune system is a network of cells, tissues, and specialized molecules that work together to identify and defend the body against invading pathogens, such as bacteria, viruses, fungi, and other infectious agents.

The immune system consists of two main components : the innate immune system and the adaptive immune system. Innate immune system The innate immune system is the body's first line of defense against infections. It Fax Lists includes physical barriers, such as the skin and mucous membranes, as well as specialized cells, such as white blood cells called phagocytes. These cells are responsible for detecting and destroying pathogens in a non-specific manner.  Adaptive immune system The adaptive immune system, also known as acquired immunity, is a more specific and precise response to threats.



This system recognizes and remembers previous pathogens, allowing a faster and more effective response to future infections. It includes cells such as T and B lymphocytes, which produce antibodies and are essential for long-term immunity. How does the immune system work? The immune system works tirelessly to keep the body safe from threats . Below, we detail the process of how it works step by step . Detection The immune system is constantly monitoring the body for invaders. Phagocytic cells, such as neutrophils and macrophages, patrol the body, seeking out and phagocytosing (devouring) pathogens they encounter.