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Lymphatic & Immune

Chapter 16 definitions

TermDefinition
Lymphatic nodules Masses of lymphatic tissue
Pharyngeal tonsil Adenoids; sits on the wall of the pharynx, just behind the nasal cavity
Palantine tonsils Lie in the posterior of the oral cavity
Lingual tonsils Concentrated in patches on each side of the base of the tongue
Spleen The body's largest lymphatic organ; surrounded by a fibrous capsule; contains red pulp and white pulp
Lysozyme An enzyme found in mucus, tears, and saliva which destroys bacteria
Chemotaxis The movement of WBCs to an area of inflammation in response to the release of chemicals from the injured cells
Interferon Protein released from virus-infected cells that helps protect nearby cells from invasion
Anaphylaxis Severe, immediate hypersensitivity reaction affecting the entire body
Cellular immunity Immune response that targets foreign cells or host cells that have become infected with a pathogen
Complement A group of proteins in blood that, through a cascade of chemical reactions, participate in nonspecific immunity
Humoral immunity Immune response that uses antibodies to target pathogens outside the host cells
Immunoglobulins Antibodies
Macrophage Important phagocyte that remains fixed in strategic areas
Natural killer (NK) cells Unique group of lymphocytes that continually roam the body seeking out pathogens or diseased cells
Neutrophils Phagocytes that accumulate rapidly at sites of acute injury
Phagocytosis Process by which phagocytes engulf and destroy microorganisms
Pyrexia Fever
Thymus gland Lymphoid organ where T cells mature; located in the mediastinal cavity
Created by: cbooher16