A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.
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20
Where does lymph pick up fats?
lymph capillaries in the lining of the small intestine pick up fat and is called Chyme and takes on a milky appearance
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20
Identify h and c, and give their function.
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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15
What are Lymph nodes?
Encapsulated masses of lymph tissue found along lymph vessels
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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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What is the function of lymphocytes?
Cells that fight infection and disease
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25
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.
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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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20
What are the chemicals that promote fevers by acting on the hypothalamus called?
Pyrogens
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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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20
Identify d and e, and give their functions.
d. lymph nodule â lymph tissue arranged in compact spherical structures without a capsule, e. capsule â dense connective tissue encapsulating the lymph node
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15
How much of the interstitial fluid is diffused back into the capillaries?
90%
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15
Where does the lymphatic system deposit the lymph back into the blood?