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Lymphatic System
| Term | Definition |
|---|---|
| Thymus | Atrophies after puberty |
| Right lymphatic duct | Short tube that receives purified lymph from the right side of the head, neck, chest, and arm |
| Lingual tonsils | Masses of lymph tissue on the back of the tongue |
| Lymphatic capillary | Small, open-ended lymph vessels |
| Lacteal | Special lymphatic capillary that picks up digested fats |
| Lymph node | Popularly called lymph glands |
| Lymph | Thin, watery fluid composed of intercellular fluid |
| Spleen | Organ on left side dorsal to the stomach |
| Pharyngeal tonsils | Commonly called adenoids |
| Cisterna chyli | Pouchlike structure at the start of the thoracic duct |
| Lymphatic vessel | Contain valves to keep lymph flowing in one direction Skeletal muscle contractions against lymph vessels cause lymph to flow through the vessels |
| Palatine tonsils | Located on each side of the soft palate |
| Thoracic duct | Empties lymph from most of the body into the L subclavian vein |
| Chyle | Lymph mixed with lipids |
| Spleen | Produces WBCs & antibodies |
| Spleen | Destroys thrombocytes & old RBCs |
| Spleen | Stores RBCs to release into bloodstream if excessive bleeding occurs |
| Spleen | Filters metabolites & wastes from body tissues |
| Thymus | Mass of lymph tissue in the center of the upper chest that produces antibodies & lymphocytes to fight infection |
| Adenitis | Inflammation or infection of the lymph nodes caused when large amount of harmful substances enter the lymph nodes and infect them |
| Hodgkin's Disease | Chronic, malignant disease of lymph nodes, most common form of lymphoma (tumor of lymph tissue) |
| Lymphangitis | Inflammation of lymphatic vessels that usually results from infection in extremity |
| Splenomegaly | Enlargement of spleen that results from abnormal accumulation of RBCs, mononucleosis, cirrhosis of the liver |
| Tonsillitis | Inflammation or infection of tonsils-usually pharyngeal & palatine tonsils |
| Inflammatory response | Immune response that occurs when tissues are injured by bacteria, trauma, toxins, heat, or any other cause |
| Passive immunity | Immunity due to antibodies that are produced in a body other than your own (antibodies that are transferred through the placenta) |
| Innate immunity | Defense system with which you were born (cough reflex, stomach acid, skin) |
| Acquired immunity | Immunity that develops with exposure to various antigens |
| Immunization | Small doses of an antigen, such as dead or weakened live viruses, are given to activate immune system |
| Signs/Symptoms of adenitis | fever, swollen & painful nodes which if not treated can form an abscess |
| Treatment of adenitis | antibiotics & warm, moist compresses; Incision & Drainage for abscess |
| Signs/Symptoms of Hodgkin's disease | painless swelling of nodes, fever, night sweats, weight loss, fatigue, pruritus |
| Treatment of Hodgkin's disease | chemotherapy, radiation |
| Signs/Symptoms of lymphangitis | red streak extending up an UE or LE from the source of infxn; fever, chills, tenderness |
| Treatment of lymphangitis | antibiotics, rest, elevation of affected part; warm, moist compresses |
| Signs/Symptoms of splenomegaly | swelling, abd pain, ruptured spleen,increased destruction of RBCs leads to anemia, leukopenia, & thrombocytopenia; shock and death if spleen ruptures and casues intraperitoneal hemorrhage |
| Treatment of splenomegaly | severe cases where cause cannot be treated splenectomy is done; avoid contact sports or activities while spleen is enlarged |
| Signs/Symptoms of tonsillitis | throat pain, dysphagia, fever, white or yellow spots of exudate on tonsils, swollen nodes near mandible |
| Treatment of tonsillitis | antibiotics, warm throat irrigations, rest, analgesics; tonsillectomy for chronic or frequent cases |
Created by:
AshleyBerryhill
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