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Apologia A&P Mod. 12
Apologia A&P Vocab for Module 12
Term | Definition |
---|---|
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 liquid 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 |