acidophiles basophills neutrophills monocutes lymphocytes? what are these please help<br />and dont gave any phaltu or bla bla bla ans .............its urgent please
please explain each term
Answers
Answer:
White blood cells - or leukocytes (lu'-ko-sites) - protect the body against infectious disease. These cells are colorless, but we can use special stains on the blood that make them colored and visible under the microscope.
White blood cells are the largest blood cell and can move by sticking out one part of their body and dragging the rest of themself along. They are the "soldiers" of the blood, attacking bacteria and other invaders unfamiliar to the body. White blood cells are able to squeeze through tiny blood vessels, leaving the bloodstream to enter other tissues that are being attacked by foreign invaders.
Most white blood cells are manufactured in the red marrow of bones. Some are also made in special glands elsewhere in the body. In a healthy person, there are between 4 and 11 thousand leukocytes in every cubic inch of blood. When a person has an infection, this signals the marrow and special glands to make more white blood cells. When a medical technologist counts the white blood cells in someone's blood, they can tell the doctor if there is an infection.
There are five types of white blood cells. They are neutrophils, eosinophils, basophils, lymphocytes, and monocytes. These five types are in two main groups: The Granulocytes and The Mononuclear Cells.
Neutrophils which make up 50 to 70 % of all circulating WBCs. Their cytoplasm is packed with pale granules containing lysosomal enzymes and bacteria-killing compounds.
Neutrophils are very active and are generally the first to attack bacteria at the site of an injury. The breakdown of used neutrophils in an infected wound forms pus.
Eosinophils which make up about 2-4 percent of circulating WBCs. Their main mode of attack is to excrete toxic compounds
which are effective against parasites that are too large to engulf.
Eosinophils are also sensitive to allergens and increase during allergic reactions.
Basophils are small and make up less than 1% of circulating WBCs. They accumulate in damaged tissue and release histamine, which dilates blood vessels, and heparin, which prevents blood clotting.
Monocytes are large, spherical cells that make up 2 to 8% of circulating WBCs. Monocytes can enter peripheral tissues to become tissue macrophages which can engulf large particles and pathogens.
Lymphocytes , slightly larger than RBCs, make up 20 to 30% of circulating WBCs. They migrate in and out of the blood.