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Link: Grey’s Anatomy http://www.bartleby.com/107/
II. Type questions & answers 1. Why is the lymphatic system important? 2. Name three functions of the lymphatic system. 3. What is the primary function of lymphs? 4. Describe the lymph nodes and their importance. 5. Describe the 6 major areas where lymph nodes are present. 6. What is the largest body of lymphoid tissue? 7. What is Hodgkin’s Disease? 8. Describe the spleen and its function. 9. Describe the immune system & its importance. 10. What are some disorders of the immune system?
III. Assignment: Two page paper on a particular virus and vaccines that have been developed. (MLA, works cited) IV. Presentation of virus
The lymphatic system and the cardiovascular system are closely related structures that are joined by a capillary system. The system is important to the body's defense mechanisms. It filters out organisms that cause disease, produces certain white blood cells and generates antibodies. It is also important for the distribution of fluids and nutrients in the body, because it drains excess fluids and protein so that tissues do not swell up. "Lymph" is a milky body fluid that contains a type of white blood cells, called "lymphocytes," along with proteins and fats. Lymph seeps outside the blood vessels in spaces of body tissues and is stored in the "lymphatic" system to flow back into the bloodstream. Through the flow of blood in and out of arteries, and into the veins, and through the lymph nodes and into the lymph, the body is able to eliminate the products of cellular breakdown and bacterial invasion. Two very large areas are of significance in this system - the right lymphatic duct which drains lymph fluid from the upper right quarter of the body above the diaphragm and down the midline, and the thoracic duct, a structure roughly sixteen inches long located in the mediastinum