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The Immune System

The Immune System. Kevin Nguyen TJ Johnson. Introduction. A system of biological structures that defends organisms from disease causing particles. Organisms can have innate immunity alone or with the addition adaptive immunity. Cnidarians- Jellies.

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The Immune System

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  1. The Immune System Kevin Nguyen TJ Johnson

  2. Introduction • A system of biological structures that defends organisms from disease causing particles. • Organisms can have innate immunity alone or with the addition adaptive immunity.

  3. Cnidarians- Jellies • Very primitive immune system. May conduct phagocytosis against foreign particles.

  4. Annelida- Oligochaete (earthworm) • Have innate immunity. Acquires cellular immunity through phagocytosis. • May have spontaneous cytotoxicity.

  5. Arthopoda- Fruit Flies • Develops more complex innate immunity with barrier defenses have hemocytes to perform phagocytosis.

  6. Mammalia- Humans • Have more complex immune system with the addition of adaptive immunity. • Have immunological memories of previous infections. • Includes various interdependent relationships with other organ systems.

  7. Innate Immunity • Occurs in all animals and is immediately active infection exposure. Does not target specific pathogens. No immunological memory.

  8. Innate Immunity (Continued) Barrier Defenses: Internal Defenses:

  9. Inflammation

  10. Adaptive Immunity • Found only in vertebrates and targets specific pathogens. Have immunological memory of previous infection exposure.

  11. Adaptive Immunity (Continued) • The cells are lymphocytes and are formed in the bone marrow. These includes B cells and T cells.

  12. Adaptive Immunity (Overview)

  13. B Cells (Recognition and Response)

  14. T Cells (Recognition and Response) Helper T Cells Cytotoxic T Cells • Response • Killer

  15. Immune Response • Further exposure to a specific antigen from a pathogen causes the increase production of certain antibodies.

  16. Immune System Structures • Includes: bone marrow, thymus, spleen, and lymph nodes.

  17. Interdependence with Other Systems

  18. Active and Passive Immunity Active Passive • Long lasting immunity, resulted by memorization for specific pathogens. • Short term immunity, where antibodies are transferred from mother to offspring.

  19. Human Immunodeficiency Virus (HIV)

  20. Asthma

  21. Works Cited • Reece, Jane, and Lisa Urry. AP Edition Campbell Biology Ninth Edition. San Francisco: Pearson Benjamin Cummings, 2011. • Wikipedia. Immune System. 23, March, 2012. Web. 21, March, 2012. < http://en.wikipedia.org/wiki/Immune_system> • Universe Review CA. Anatomy of Animals. Web. 22, March, 2012. <http://universe-review.ca/R10-33-anatomy.htm> • The Human Body @ NNHS. Immune System Organs and their Functions. Web. 23, March, 2012. <http://bodywiki.wetpaint.com/page/Immune+System+Organs+and+Their+Functions>. • PubMed Health. Asthma. Web. 25, March, 2012. < http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001196/>.

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