They are natural cells in your blood.
Do you mean what causes an abnormal increase in their number?
2006-07-20 07:13:53
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answer #1
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answered by Anonymous
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Lymphocytes are small white blood cells.
They are responsible for immune responses. There are two main types of lymphocytes: B cells and T cells. The B cells make antibodies that attack bacteria and toxins while the T cells attack body cells themselves when they have been taken over by viruses or have become cancerous. Lymphocytes secrete products (lymphokines) that modulate the functional activities of many other types of cells and are often present at sites of chronic inflammation.
They accumulate when there is chronic injury or irritation. In addition to circulating around in your blood, they also "live" in lymph nodes (those bumps that can enlarge in your neck, your armpits, and groin). Once lymphocytes arrive, they may stay in a certain location like a salivary gland, thyroid gland, knee joint, etc for a long time and interfere with functioning. Often there is no way to get rid of them.
A peripheral lymphocytosis has many possible causes, including a physiologic (epinephrine) lymphocytosis, immune stimulation, and lymphocytic leukemia
2006-07-20 07:17:04
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answer #2
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answered by doctor octagon 2
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A lymphocyte is a type of white blood cell involved in the human body's immune system. There are two broad categories of lymphocytes, namely T cells and B cells. Lymphocytes play an important and integral part of the body's defenses.
T cells are chiefly responsible for cell-mediated immunity whereas B cells are primarily responsible for humoral immunity (relating to antibodies). T cells are named such because these lymphocytes mature in the thymus; B cells, named for the bursa of Fabricius in which they mature in bird species, are thought to mature in the bone marrow in humans.
We get a rise in these when we have an inflam action in our body.
2006-07-20 07:14:51
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answer #3
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answered by Anonymous
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Lymphocytes are white blood cells. There are 2 types: B cells make antibodies while T cells kill viruses. They're made in the bone marrow. Did you mean 'what causes leukemia'?
2006-07-20 07:15:37
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answer #4
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answered by Anonymous
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Do you mean what causes "Lymphocytosis"?
Lymphocytosis / lymphocythaemia- excess of lyphocytes in the blood.
(1) Infants and young children.
(2) Infections-
(a) Viral: Infectious mononucleosis, infective hepatitis, acute infectious lymphocytosis, mumps, rubella, cytomegalovirus infection, varicella.
(b) Bacterial: Tuberculosis, pertussis, brucellosis.
(c) Protozoal: Toxoplasmosis.
(3) Lymphoproliferative disorders-Chronic lymphocytic leukemia, Waldenstrom's macroglobulinaemia.
(4) Miscellaneous- Drug reactions, hyperthyroidism, myasthenia gravis, convalescence from any infection.
(5) Occasionally atrial myxoma.
(6) Malaria.
(7) Drugs- Hydralazine, procainamide.
2006-07-20 16:57:02
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answer #5
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answered by gangadharan nair 7
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They are your body's defence against infection.
Aids destroys your immune system.
2006-07-20 07:15:36
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answer #6
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answered by eireblood2 4
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your bone marrow makes them to fight infections.
2006-07-20 07:28:22
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answer #7
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answered by celine c 1
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already you got answer.
2006-07-20 07:30:09
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answer #8
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answered by prince47 7
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