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Lymphatic System CCC
PN105 Lymphatic System CCC
| Question | Answer |
|---|---|
| fluid in tissue spaces that carries protein moleculs back to blood | lymph |
| lymph is formed by ____ leaving capillaries | plasma |
| types of lymphatic vessels | lyhmphatic capillaries, R lymph duct, thoracic duct |
| permit only 1-way movement of lymph | lymphatic vessels |
| permit excess tissue fluid and other substances to leave tissue spaces | lymphatic capillaries |
| drains lymph on R side of head/neck/torso | R lymphatic duct |
| largest lymphatic vessel, drains lymph from 3/4 of body | thoracic duct |
| enlarged pouch along path of thoracic duct | cisterna chyli |
| function of lymph nodes | filter lymph for body defense and WBC formation |
| carries lymph to node | afferent vessels |
| carries lymph away from node | efferent vessels |
| produces T cells and plays central role in immunity, in mediastinum | thymus |
| 3 masses of tissue at back of mouth/throat | palatine tonsils, pharyngeal tonsils, lingual tonsils |
| largest lymph organ, acts as blood resevious and phagocytosis of bacteria and old RBC | spleen |
| immune system | protects body from pathological bacteria, foreign tissue cells, and cancer cells |
| innate and adaptive | specialized cells of immune system |
| innate immunity (non-specific immunity) | no prior exposure to antigen: skin, tears, mucous, inflammation |
| specific immunity (adaptive immunity) | recognizes, remembers, and responds to harmful substances |
| active natural specific immunity | exposure is not deliberate, like chicken pox |
| passive natural specific immunity | exposure is not deliberate, passed through fetus |
| active artificial specific immunity | exposure is deliberate, like flue shot |
| passive artificial specific immunity | exposure is deliberate, antibodies from infected person made into serum to give to uninfected person (maybe like Hep C virus?) |
| protein compounds with specific combining sites, produced by antigens | antibodies |
| group of proteins in blood that kill harmful cells, attract immune cells, and increase permeability of blood vessels | complement proteins |
| injest harmful cells | phagocytes |
| types of phagocytes | neutrophils, monocytes, macrophages |
| types of macrophages | kupffer cells (liver), dust cells (lungs) |
| lymphocytes | compose lymph nodes, thymus, liver |
| most numerous of immune system cells | lymphocytes |
| types of lymphocytes | B cells and T cells |
| secrete antibodies, produce humoral immunity, and give long-term immunity | B cells |
| produce cell-mediated immunity, release substances to poison harmful cells and attract microphages | T cells |
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