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Immune System

Immune System . By: Perri Glover, Mary Beth Eaves, && Meagan Riggins. Definition. A system of biological organ that organs that protect against disease by identifying and eliminating harmful pathogens from the body. This system is also considered the lymphatic system.

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Immune System

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  1. Immune System By: Perri Glover, Mary Beth Eaves, && Meagan Riggins.

  2. Definition • A system of biological organ that organs that protect against disease by identifying and eliminating harmful pathogens from the body. • This system is also considered the lymphatic system.

  3. Parts of the Immune System • Appendix • Lymph Node • Spleen • Skin • Thymus • Tonsil • Lymphocytes

  4. Appendix • A small finger like extensions of the large intestine that contains a mass of white blood cells. http://www.answersingenesis.org/tj/v14/i2/vestigial.asp

  5. Lymph Node • Are found throughout the body. Ex. In the throat, armpits, and legs. • Helps trap foreign partials and molecules. • Host white blood cells that attack viruses and bacteria. http://www.health.com/health/library/mdp/0,,tp12094,00.html

  6. Spleen • Holds lymphocytes in case of verses and bacteria are present. • Remove old red blood cells from the body. • Holds reserves of iron. http://health.allrefer.com/pictures-images/spleen.html

  7. Skin • The outer protection of the human body. • Prevents foreign invaders from entering the body. • Protects the body from burns, bacteria, etc. http://www.gorawhavefun.com/

  8. Thymus • Secretes messagersfor the for the immune system. • Ex. Thymosin stimulates and helps T cells mature. http://www.myasthenia.org.au/html/treatments.htm

  9. Tonsil • Located in the upper portion of the throat. • One of each side • The tonsils help trap and prevent foreign bodies from entering the human body. http://www.besthealth.com/besthealth/bodyguide/reftext/html/lymp_sys_fin.html

  10. Lymphocytes • The key cell in immune system • There are two types: B lymphocytes ( B cell) and T lymphocytes (T cells) • Both are mainly concentrated in the spleen and lymph nodes • B and T Cells focus on a specific antigen of a virus or bacteria, and thus produce antibodies. http://www.wadsworth.org/chemheme/heme/microscope/imono.htm

  11. Function First Line of Defense- Skin and mucous membranes. Second Line of Defense- Phagocyte white blood cells, antimicrobial, and the inflammatory response. Third Line of Defense- Lymphocytes and Antibodies

  12. Links Between Systems • Endocrine- The endocrine system send signals to secrete or develop white blood cells when a foreign body is present. • Cardiovascular- Blood delivers the white blood cells to problem sites. • Nervous- The nervous system signals to the immune system that a foreign invader is in the body.

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