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Unit 6

What is lymph? Fluid in the lymphatic system that collects from interstitial spaces and to the blood; low in protein
What are the lymphatic vessels? Vessels that transport the lymph
What is lymphatic tissue? Composed of many cell types, ( lymphocytes and macrophages)
What are lymphatic organs? Connective tissue capsules (nodes)
What is lymph and what is it carried in? Colorless liquid that is low in protein and contains macrophages, lipids, hormones, bacteria, viruses, cancer cells.
What is fluid recovery in the lymphatic system? Reabsorbs excess fluid back into the blood stream; failure of this can lead to edema
What is Immunity in the lymphatic system? Pick up pathogens from interstitial spaces and filters them through lymph nodes
What is liquid absorption in the lymphatic system? small intestine has specialized lymphatics that take up lipids; Lacteals absorb lipids that cannot be absorbed by the blood stream.
Where are the lymphatic capillaries found? Intertwined with regular capillaries
What is the function of a Natural killer cell? Attach and kill bacteria, transplanted tissue and ones own self defense against cancer cells, found in the blood
What is the function of a T lymphocyte? Regulates activity; found in the lymph nodes
what is the function of a B lymphocyte? Secretes antibodies, mature in bone marrow, some may become memory B cells
What is the function of Macrophages? Presents antigens to T cells so immune response may be enacted
What is the function of Dendritic cells? Eat foreign matter
What are the primary lymphatic organs and what do they do? Primary lymphatic organs are the red bone marrow, and the thymus. B cells learn to recognize antigens in the Red bone marrow and T cells learn to recognize antigens in the thymus.
what are the four classes that t lymphocytes have? Cytoxic T cells Helper T cells Regulatory T cells Memory T cells
What does a Cytoxic T cell do? Attack and kill other cells
What does a Helper T cell do? respond to antigens and ilicit a defense
What do Regulatory T cells do? keep the system in check
What do memory T cells do? Long lasting memory against antigens
What are the secondary lymphatic organs and what do they do? Secondary lymphatic organs are the lymph nodes, tonsils, and the spleen. All cells in these organs are already trained for immunity
What is one function of the respiratory system?1 Speech and vocalization
What is one function of the respiratory system? 2 Gas exchange (O2, CO2, between air, blood)
What is one function of the respiratory system?3 olfaction (smell
What is one function of the respiratory system?4 Helps control PH
What is one function of the respiratory system?5 Aids in regulation of blood pressure by assisting aniotensin ll production
What is one function of the respiratory system?6 helps create pressure gradients for flow of lymph and venous blood
Created by: haleighmercer



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