h. reticular fibers- a net of connective tissue. support, c. germinal center â mitosis of lymphocytes can take place in response to a foreign invader.
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20
What do the different regions of the antibody do?
variable region binds to antigens, The constant region determines the class of the antibody which identifies the method it will use to fight the antigen
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What function do the skeletal muscles play in the lymphatic system?
Skeletal muscles pump lymph through the lymph vessels. The valves prevent back flow
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What are the three functions of the spleen?
1. Cleanse the blood of foreign invaders, 2. To dispose of worn out erythrocytes, 3, to be a reservoir of oxygen rich blood.
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What are Peyer's patches
Peyer's patches are groupings of lymphoid follicles in the mucus membrane that lines your small intestine.
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How does a vaccine work?
a dead or weakened pathogen is put in your body to cause an immune response. Your immune system remembers it and can quickly fight it if you are exposed again
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What is passive immunity? How long does it last? give and example
antibodies you receive from someone else. not long: an infant gets antibodies through placenta and breast milk, Rh-mom receives Rh+antibodies in a shot,rhogam
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What is the function of lymphocytes?
Cells that fight infection and disease
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What are viruses?
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.
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What prevents lymph from flowing backwards in the lymph vessels?
valves
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What are the ways antibodies attack antigens? (5 answers)
1.Bind to antigens2.bind antigens in clumps3.Activate complement4.Stimulate phagocytosis5.stimulate inflammation
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What do natural killer cells do?
Lymphocytes that attack tumor cells and virus infected cells