specific immunity by tanner hamilton, asia thofield
Post on 19-Jan-2018
225 Views
Preview:
DESCRIPTION
TRANSCRIPT
Specific ImmunityBy Tanner Hamilton, Asia Thofield
The Immune System
What The Immune System
How it works•Proteins on cell surface•Immune memory
Innate Immune System•General defense•Usually bacterial infections
Adaptive Immune System•Learned throughout life•Specific Immunity•Usually used against bacteria and viruses
that change regularly•Quicker responses
T Cells•Type of white blood cell•Makes up adaptive immune system
Killer T-Cells•Attacks other cells•Can “see” into other cells•Also known as “Cytotoxic”
Helper T-Cells•Leads other T-Cells, B-cells, and other
immune response cells•Express CD4 co-receptor
General Facts about T-Cells•Cause of all autoimmune responses•Cause of transplanted organ rejection•Some allergic reactions•1/50 T-Cells are actually found in blood
Development of a T-Cell•Created in Lymph Nodes•Matures in Thymus
HIV•Infection occurs when bodily fluids are
exchanged• Human Immunodeficiency Virus
How HIV Reproduces •Uses CD4 Cells•Inserts genetic information into the host
cells nucleus•Reassembles itself and then pushes out of
the host cell while stealing necessary components
How HIV affects T-Cells and The Body•Undetermined cause of death for the T-
Cell•Lowers T-Cell count to dangerous levels•Healthy adult= 500 cells/mm3 to 1,200
cells/mm3•HIV infected adult= Less than 200
cell/mm3•Can cause acquired immune deficiency
syndrome
References•http://www.webmd.com/a-to-z-guides/com
ponents-of-the-immune-system•http://www.tcells.org/beginners/tcells/•https://www.aids.gov/hiv-aids-basics/just-d
iagnosed-with-hiv-aids/understand-your-test-results/cd4-count/
•http://www.the-scientist.com/?articles.view/articleNo/38739/title/How-HIV-Destroys-Immune-Cells/
top related