kevin nguyen tj johnson. introduction a system of biological structures that defends organisms from...
DESCRIPTION
Cnidarians- Jellies Very primitive immune system. May conduct phagocytosis against foreign particles.TRANSCRIPT
The Immune SystemKevin 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
Very primitive immune system. May conduct phagocytosis against foreign particles.
Annelida- Oligochaete (earthworm)
Have innate immunity. Acquires cellular immunity through phagocytosis.
May have spontaneous cytotoxicity.
Arthopoda- Fruit FliesDevelops more complex
innate immunity with barrier defenses have hemocytes to perform phagocytosis.
Mammalia- HumansHave more
complex immune system with the addition of adaptive immunity.
Have immunological memories of previous infections.
Includes various interdependent relationships with other organ systems.
Innate Immunity
Occurs in all animals and is immediately active infection exposure. Does not target specific pathogens. No immunological memory.
Innate Immunity (Continued)
Barrier Defenses:
Internal Defenses:
Inflammation
Adaptive Immunity
Found only in vertebrates and targets specific pathogens. Have immunological memory of previous infection exposure.
Adaptive Immunity (Continued)
The cells are lymphocytes and are formed in the bone marrow. These includes B cells and T cells.
Adaptive Immunity (Overview)
B Cells (Recognition and Response)
T Cells (Recognition and Response)Helper T Cells Cytotoxic T Cells
Response Killer
Immune ResponseFurther
exposure to a specific antigen from a pathogen causes the increase production of certain antibodies.
Immune System Structures
Includes: bone marrow, thymus, spleen, and lymph nodes.
Interdependence with Other Systems
Active and Passive ImmunityActive Passive
Long lasting immunity, resulted by memorization for specific pathogens.
Short term immunity, where antibodies are transferred from mother to offspring.
Human Immunodeficiency Virus (HIV)
Asthma
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/>.