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Biology Chap 39 - Immunity From Disease
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Terms in this set (30)
bacteria, protozoans, fungi, viruses, and other parasites that produce disease
a disease caused by pathogens
present, isolated, host, pathogen
Koch's Postulates: 1. In every disease case, pathogen must be _______ in host. 2. Pathogen must be ________. 3. Must cause the disease when placed in a new ____. 4. Must remain the same ________.
a disease that is always circulating in a population
when many people are affected by the same disease in the same area at the same time
a substance produced by a microorganism that, in small doses, will kill or inhibit the growth and reproduction of other microorganisms (such as bacteria)
__________ diseases are caused by the presence of _________ in the body.
cause, Koch's postulates
The _____ of an infection can be established by following ______ __________.
Animals, nonliving objects, reservoirs, contact, object, air, vector
_______, including humans, and _________ _______ can serve as __________ of pathogens. Pathogens can be transmitted by direct _______, by a contaminated ______, through the ___, or by a ______ (such as an insect).
Symptoms, damage, cells, toxins
________ of a disease are caused by direct ______ to _____ or by ______ produced by the pathogen.
periodically, endemic, epidemic
Some diseases occur ____________, whereas others are _______. Occasionally, a disease reaches ________ proportions.
Some infectious diseases can be treated with ___________, but pathogens may become _________ to these drugs.
first defense of body against diseases
white blood cells that surround pathogens to kill them
white blood cell that provides the first line of defense against pathogens
body fluids that collect around an injury
proteins that protect from viruses
defending against a pathogen by acquiring a resistance to it
water and dissolved substances from blood
the tissue fluid when it enters the lymph cappilaries
Small mass of tissue that contains lymphocytes and filters pathogens from the lymph; made of a network of connective tissue fibers that contain lymphocytes
a white blood cell that defends from foreign substances
types: killer and helper; produced from marrow bone and thymus gland
types: memory and plasma; becomes a plasma cell when activated by T cell
a fluid that causes some pathogens to back down their attack
______ immunity provides general protection against various pathogens.
skin, mucus, lysozymes, inflammation, phagocytosis, interferons
Innate immunity includes the physical barrier of the ____ as well as _____, _________ in sweat, oil, tears, and saliva, the ___________ response, ____________, and ___________.
Acquired, antibody, cellular
________ immunity provides a way of fighting specific pathogens by recognizing invaders as nonself. It includes ________ and ________ immunity.
lymphatic, lymph nodes, tonsils, spleen, thymus
The _________ system consists of the lyphatic vessels and the lymphatic organs: _____ _____, _______, ______, and ______.
Passive, antibodies, Active, exposed, antigens
_______ immunity develops as a result of acquiring __________ generated in another host. ______ acquired immunity develops when the body is directly _______ to ________ and produces antibodies in response.
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