and the diameter of them is on average about twelve to fifteen m. The third type of granular leukocytes is called, basophil. Basophil’s major function is, secretion. They tend to have a diameter of 12-15 m. These cells make up only about one percent of the total population of white blood cells, causing them to be much more difficult to detect. These cells secrete both histamine and heparin. Histamine draws blood into the damaged area, while heparin slows clotting so that more blood can enter the damaged area. There are two different kinds of agranular white cells. One is called monocyte, and the other is called lymphocyte. The major function of monocyte is, phagocytosis. These cells more very quickly and are therefore able to consume bacteria and dead tissue at a fast rate. Monocytes have an average diameter of, 12-17 m, and they make up about 3-8 percent of our leukocyte’s population. Lymphocytes, major function are immunity. There are many different forms of lymphocytes, and all of the different forms have different functions. B-lymphocytes produce, plasma cells, which form antibodies to (humeral immune response), T-lymphocytes produce, suppressor cells, helper cells, and cytotoxic, killer cells. Lymphocytes have a diameter of about 8-18 m. In general leukocytes, “either clear away dead cells from the body, or destroy specific bacteria, viruses, and other agents of disease.” BIBLIOGRAPHY:“HomeworkHelp.com”*http://www.homeworkhelp.com/homeworkhelp/freemember/text/bio/high/private/ch11/0701/main.htm* (viewed 20 Apr. 2001)Marikk, Sze Leung and Janet.” THE WHITE BLOOD CELL.”*http://library.thinkquest.org/25896/sub_blood/wbc.htm* (viewed 20 Apr. 2001)Starr Cecie, and Ralph Taggart. Biology: The Unity and Diversity of Life Boston: Wadsworth Publishing Corp., http://faculty.stcc.mass.edu/tamarkin/ap/ap2pages/blood/white.htm...
