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Immune System isaiah sailors P:1 (Anatomy of the lymphatic system…
Immune System
isaiah sailors P:1
Major functions of the
Lymphatic & Immune systems;
lymphatic system
The primary function of the lymphatic system is to transport lymph, a fluid containing infection-fighting white blood cells, throughout the body and get rid of bodily watse
immune system
the primary function of the immune system is to protect the body from foreign bodies that make it inside the body.
Anatomy of the lymphatic system
Lymphatic Capillaries
Lymphatic trunks
Collecting lymphatic vessels
Lymphatic ducts
cisterna chyli
nodes
Lymphocytes
Macrophages
plasma cells
dendritic cells
Innate defenses and Adaptive immune defenses;
innate defense
the mechanical barriers that cover body surfaces and the cells and chemicals that act on the initial internal battlefronts are in place at birth, ready to ward off invading pathogens
Examples: skin Acid Enzymes Mucin
adaptive defense
the body’s built-in specific defensive system that stalks and eliminates with nearly equal precision almost any type of pathogen that intrudes into the body.
uses Humoral immunity and cellular immunity
humoral vs. cellular response;
cellular response
Cell-mediated immunity is an immune response that does not involve antibodies, but rather involves the activation of phagocytes, antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen
(uses cells)
humoral response
immunity that is mediated by macromolecules found in extracellular fluids such as secreted antibodies, complement proteins, and certain antimicrobial peptides.
(no cells)
antigens and antibodies.
Antigens
Y-shaped molecules are proteins manufactured by the body that help fight against foreign substances called antigens.
antibodies
a blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances which the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood.
disorders of the Immune system.
severe combined immunodeficiency (SCID) syndromes
acquired immune deficiency syndrome (AIDS)
human immunodeficiency virus (HIV)
autoimmune disease.
Rheumatoid arthritis,
Multiple sclerosis
Myasthenia gravis,
Immediate hypersensitivities,