Innate, or nonspecific, immunity is the defense system with which you were born. The body's second line of defence - Science Learning Hub The third line of defence focuses on the target of specific antigens that have entered the body. How Does the Immune System Fight COVID-19? - GoodRx The immune system. The immune system review (article) | Khan Academy Antigens are proteins that are found on the surface of the pathogen. The bacterium is attracted to the membrane of the phagocyte. 24.1 Nonspecific Defenses . It also secretes fluids and other substances that . The three lines of defence | Position papers - IIA The Immune System - Rabies Innate immunity involves barriers that keep harmful materials from entering your body. The Immune system - The Immune System This is the immune system. It acts like a barrier that prevents germs from entering your body. The theme of the first table is the three lines of defense. The 3 lines of defense of the body - MICROBIOLOGY The immune system protects its host from infection with layered defenses of increasing specificity. How Does the Immune System Work? - spermidineLIFE® US This type of immunity is long lasting due to the production of memory cells. Jan. 12, 2021 — The body's immune system is the first line of defense against infections like bacteria, viruses or cancers. Willey, 2014). PDF Name the 3 lines of defense against pathogens Main Ideas 3-Lines of Defense. The innate immune system is the first part of the body to detect invaders such as viruses, bacteria, parasites and toxins, or to sense wounds or trauma. The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. Dr. Naim Kittana, PhD 3 Immunity: Two Intrinsic Defense Systems Innate (nonspecific) system responds quickly and consists of: First line of defense - intact skin and mucosae prevent entry of microorganisms Second line of defense - antimicrobial proteins, phagocytes, and other cells Inhibit spread of invaders throughout the body The third line of defence is engaged if the first and second lines of defence fail. In this paper we will focus on the cells involved in innate immune . PDF Chapter 24 The Immune System and Disease Worksheets How immune cells defend themselves against HIV - ScienceDaily