Anatomy and Physiology : The Immune System

The book introduces the two main defense systems, innate immunity and adaptive immunity, describing their characteristics and how they protect the body. It explains immune memory, antigens, antibodies, complete and incomplete antigens, and the role of toll-like receptors.

Key topics include white blood cells such as neutrophils, monocytes, and basophils, along with processes like inflammation, phagocytosis, hyperemia, exudate formation, and the role of histamine. The text also describes the functions of B-lymphocytes and T-lymphocytes, natural killer cells, and the complement system.

Conditions such as autoimmune disease, immunopathology, leukocytosis, congenital athyma, and multiple sclerosis are discussed. The book also explains how active and passive humoral immunity are acquired through infection, vaccination, maternal antibodies, or donor antibodies.

This volume will interest students, health science learners, and general audiences who want to learn about the immune system, its defenses, and its role in health and disease.