Anatomy & Physiology: Current Research
Open Access

Abstract

Immune System Anatomy and Physiology in Inflammatory Disorders

Tharindu Perera

The immune system is one of the most intricate and highly coordinated biological systems in the human body, providing continuous protection against pathogens while maintaining tissue homeostasis. Traditionally, immunology has focused on identifying immune cells and their responses to infectious agents. However, recent advances in anatomy, molecular biology and systems physiology have demonstrated that the immune system functions as a dynamic network involving specialized organs, lymphatic vessels, circulating immune cells and tissue resident populations that continuously communicate with nearly every organ system. The anatomical framework of the immune system consists of primary lymphoid organs, including the bone marrow and thymus, where immune cells develop and mature and secondary lymphoid organs such as lymph nodes, the spleen, tonsils, Peyer's patches and mucosa associated lymphoid tissues. These structures are interconnected through an extensive lymphatic network that enables immune surveillance throughout the body. Rather than functioning independently, immune organs operate as an integrated communication system that coordinates rapid responses to infection, tissue injury and environmental challenges.

Published Date: 2025-07-04; Received Date: 2025-07-04