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
 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 Flies
 Develops more complex
innate immunity with
barrier defenses have
hemocytes to perform
phagocytosis.
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.
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 Response
 Further
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 Immunity
Active
 Long lasting immunity,
resulted by memorization for
specific pathogens.
Passive
 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/>.