immune system is made up of cells, tissue and organs that work together to protect the body. these...
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Immune System is made up of cells, tissue and organs that work together to protect the body. These cells are white blood cells or leukocytes. Two types of leukocytes:1. phagocytes (chew up invading organisms)2. lymphocytes (remember and recognize previous invaders and help the body to destroy them)
PHAGOCYTES
LYMPHO
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There are 2 kinds of lymphocytes:B Lymphocytes (mature in bone marrow) “T Cells”T Lymphocytes (mature in thymus) “B Cells”
BT
Military intelligence system: seeks out enemy and sends defenses to lock on to them
Soldiers: destroys invaders that the intelligence system has identified
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B cells also produce antibodies.
BAntibodies: proteins that lock on to certain antigens (the bad guys)This is how vaccines work. (become immune)
HIV
CHICKENPOX
MEASLES
SHINGLES
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Antibodies can lock on to an antigen but they can not destroy it without help. That is the job of the T cells. Antibodies tag the bad guys. T-cells find the bad guys with the heap of the tag. T-cells destroy the antigen.
TAG….YOU ARE IT!
MEASLES
ANTIBODIES
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How the HIV Virus takes over the body?
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HIV BODY
BLOOD
SEMEN
VAGINAL SECRETIONS
MOTHER TO CHILD
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HIV virus enters the blood stream attacking the T-helper cells.
HIVT-HELPER CELL
ATTACKS
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HIV VIRUS GETS YOUR T-CELL TO REPLICATE THE VIRUS. T-CELL IS DESTROYED
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HIV