PPT-Third Line of Defense Immune System Notes

LYMPHOCYTES Are the key cells of the immune system Two types B and T Both produced in the bone marrow B matures in the bone marrow T matures in the thymus Immunocompetency B and T lymphocytes must recognize self. 1) Lymphatic Vessels. . Reach every organ in the body. . . Pick up the tissue fluid (lymph) and transport it to the heart. Lymph Nodes. . Pea shaped tissue along the vessels that contain compartment sinuses that house lymphocytes and macrophages. What is the immune system?. The body’s defense against disease causing organisms, malfunctioning cells, and foreign particles. The First Line of Defense. ~Skin~. The dead, outer layer of skin, known as the . Lori Herrington. Chaparral High School. What is immunology?. Very simply, it is the study of our body’s defense against infection and disease.. Even though we are constantly bombarded by microorganisms, we rarely become sick. Why?. THE IMMUNE SYSTEM. NONSPECIFIC DEFENSES AGAINST INFECTION INCLUDE THE. SKIN. MUCOUS MEMBRANES. PHAGOCYTIC CELLS. ANTIMICROBIAL PROTEINS. THE IMMUNE SYSTEM. NONSPECIFIC DEFENSE MEANS THAT THEY DON’T DISTINGUISH BETWEEN MICROBES. What is the Immune System?. Our body’s natural defensive line to foreign material called microbes.. Without an immune system, microbes would quickly attack our bodies.. Our body has three levels of defense against foreign invaders. . The Body’s Defense System. External Defenses. A . pathogen. is an organism, a . virus. , or a protein that causes . disease. Your . skin. provides . external. protection against . pathogens . that may enter the body. Chaparral High School. What is immunology?. Very simply, it is the study of our body’s defense against infection and disease.. Even though we are constantly bombarded by microorganisms, we rarely become sick. Why?. 1. Immunity: Two Intrinsic Defense Systems. Innate. (nonspecific) system responds quickly and consists of:. First line of defense. – skin and mucosa prevent entry of microorganisms. Second line of defense. 1) Lymphatic Vessels. . Reach every organ in the body. . . Pick up the tissue fluid (lymph) and transport it to the heart. Lymph Nodes. . Pea shaped tissue along the vessels that contain compartment sinuses that house lymphocytes and macrophages. Your defense against the antigens of the world. The webinar recording of this presentation will be available at:. www.nspwebinars.com. Phone: 1-712-432-0453 PIN 8626. (Not a toll-free . call. ). Be in our Cancun Giveaway Drawing!. ecognize. A. ttack. D. estroy . A. nd . R. emember. Bodies defense against pathogens. Immune System recognizes the identity of foreign substances. Antigens are found on the cells of all organisms and your body is able to identify your own cells and tell when a foreign cell has entered the system. Complete the following statements with always, sometimes or never. I ____ wash my hands before meals. When preparing fruits and vegetables, I ____ wash them thoroughly. I am ____ careful to use only my own eating utensils, drinking cups, towels, toothbrush, and grooming items.. Diseases. 39.1 & 39.2. 1/30 . TSW understand and explain the role of antibodies in the body’s response to a bacterial infection during the warm up. P. . 20 . NB. What is a pathogen?. Identify cells, tissues and organs that make up the immune system.. Adaptive . Non-adaptive (. cell injury-----cell death). hypertrophy. Dysplasia. hyperplasia. neoplasia. Atrophy. Degeneration. Metaplasia. Necrosis, apoptosis. & gangrene. Reversible. Reversible* / Irreversible.