Terminology Unit 3
1. Lymphatic system: Vessel system composed of lymphatic capillaries, lymphatic vessels, lymphatic ducts, and lymph nodes that convey lymph from the tissueto the blood.
2. Lymph capillaries: Smallest pipes of the lymphatic system.
3. Lymph: An almost colorless fluid that travels trough vessels called lymphatics in the lymphatic system andcarries cells that help fight infection and disease.
4. Lymphatic vessels: Vessels that begin as capillaries carrying lymph, continue to the lymph nodes, and empty into the right lymphatic duct and thethoracic duct.
5. Lymph nodes: Are small rounded or bean-shaped masses of lymphatic tissue surrounded by a capsule of connective tissue.
6. Lymphatic trunks: Lumbar, intestinal, intercostal,bronchomediastinal, subclavian, and jugular trunk.
7. Thoracic duct: Large duct that runs from the abdomen up through the diaphragm and into the left subclavian vein.
8. Right lymphatic duct:Smaller duct within the right thorax that empties into the right subclavian vein.
9. Spleen: An organ located in the upper left part of the abdomen near the stomach. The spleen produceslymphocytes.
10. Thymus: It is the thymus that the lymphocytes mature, multiply, and become T cells.
11. T cells: Help B cells in making antibodies.
12. Immune system: A complex organization within thebody that is designed normally to “seek and destroy” invaders of the body, including infectious agents.
13. Antigens: Substance that is capable of causing the production of an antibody.
14.Antibodies: Proteins secreted by B lymphocytes (plasma cells) that attack infected cells.
15. Barriers: Anything that prevents invaders from getting inside your body prevents infection.
16. Cell: Abasic unit of life that contains the internal organisms, or viscera.
17. Neutrophils: A type of leukocyte that perform non-specific phagocytosis.
18. Macrophages: A type ok white blood cell...