What are Lymph nodes?
Encapsulated masses of lymph tissue found along lymph vessels
What is M.A.L.T.?
Mucosa associated lymphoid tissue:concentration of lymphatic tissue with no clear boundaries, also called diffuse lymphatic tissue.found deep in mucous membrane
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
What are the ways antibodies attack antigens? (5 answers)
1.Bind to antigens2.bind antigens in clumps3.Activate complement4.Stimulate phagocytosis5.stimulate inflammation
Name three of our bodies first line of defense.
Our skin,our stomach acid,sweat glands,sebaceous glands,mucous,tears have lysosomes,urine washes the urinary tract,cervical mucous,symbiotic organisms.
What are the chemicals that promote fevers by acting on the hypothalamus called?
Pyrogens
What do natural killer cells do?
Lymphocytes that attack tumor cells and virus infected cells
What are three basic functions of the lymphatic system?
Fluid balance, fat absorption, immunological defense
What prevents lymph from flowing backwards in the lymph vessels?
valves
How much of the interstitial fluid is diffused back into the capillaries?
90%
What is the function of lymphocytes?
Cells that fight infection and disease
