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Apologia Human Body

Module 12

Lymph tissue Groups of lymphocytes and other cells which support the lymphocytes
Lymph nodes Encapsulated masses of lymph tissue found along lymph vessels
Lymph Watery fluid formed from interstitial fluid and found in lymph vessels
Edema A buildup of excess fluid in the tissues, which can lead to swelling
Immunological defense The process by which the body protects itself from pathogenic invaders such as bacteria, fungi, parasites, and foreign substances
Diffuse lymphatic tissue Concentrations of lymphatic tissue with no clear boundaries
Lymph nodules Lymphatic tissue arranged into compact, somewhat spherical structures
Innate immunity An immune response that is the same regardless of the pathogen or toxin encountered
Acquired immunity An immune response targeted at a specific pathogen or toxin
Complement A series of 20 plasma proteins activated by foreign cells or antibodies to those cells. They (1) lyse bacteria, (2) promote phagocytosis, and (3) promote inflammation.
Interferon Proteins secreted by cells infected with a virus. These proteins stimulate nearby cells to produce virus-fighting substances.
Pyrogens Chemicals which promote fever by acting on the hypothalamus
Humoral immunity Immunity which comes from antibodies in blood plasma
Cell-mediated immunity Immunity which comes from the actions of T-lymphocytes
interstitial fluid fluid that exists between the cells
tonsils groups of lymph nodules found in the throat and on the back of the tongue
Peyer's patches groups of lymph nodules found in the wall of the small intestine
afferent lymph vessels carry blood ________ the lymph node into
efferent lymph vessels carry lymph ________ the lymph node away from
____________________ functions are 1) testing the lymph for foreign invaders 2) adding lymphocytes to the blood 3) be a reservoir of oxygen-rich blood lymph node
____________________ functions are 1) cleanse the blood of foreign invaders 2) adding lymphocytes to the blood 3) filtering the lymph with macrophages spleen
The ______________ 1) is where T-lymphocytes mature 2) secretes thymosin thymus
constant region section of the antibody that determines what groups it is in
_________________ can inactivate antigens by binding to them, binding them together in groups, activating complement, stimulating phagocytosis, and stimulating inflammation antibodies
________________ release antibodies plasma B-cells
________________ remember the infection so that they can respond to the next infection memory B-cells
________________ attack and lyse foreign cells cytotoxic T-cells
memory T-cells remember the infection for the next time
_______________ promote the proliferation of cytotoxic T-cells and B-cells helper T-cells
MHC a group of glycoproteins that identifies cells as part of the body
variable region section of the antibody that determines what antigen it can bind to
vasodilation result of inflammation which causes increased blood flow
Created by: q



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