University:
California State University, Northridge
Course:
BIOL 211 | Human Anatomy
Academic year:

2022
Views:

97

Pages:

3
Author:

gewoekerdodx

Leukocytes-White blood cells -least abundant formed elements 5,000-10,000 WBC'S -Protect against protection "light voilet to dark purple -rutains their organelles throughout life 5 kinds of leukocytes; distiguished from each other by Size + abundance Shape and size of nuclei, functions All WBC's have lysosomes-non specific granules in the cytoplasm Neutrophils, eosinophils, basophils-granulaytes Monocytes, lymphocytes - agranulocytes Neurophils-most abundant 4,150 cells/µl 60-70% of Circulating leukocytes Eosinophils-harder to find in a blood film 2-4% of WBC total 170 cells/µl -abundant in the mucous membranes of the vespirtory, digestive, and lower Urinary tracts Basophils-ravest of all formed elements 40 cells/ µL Seclete 2 chemicals that aid in the body's defense processes 1) histamine: vasodilator that widens the blood vessels, speeds flow of lolood 2) heparin : inhibits blood clotting, Promotes mobility of other WBCO'S Lymphocytes: 2nd to neutrophils in abundance 2,200 cells /μL 25-33% of WBC count Monocytes: largest WBC's 2 to 3 times the diameter of an RBC 460 cells (μι 3-8% WBC count Leukopoiesis - production of white blood Cells Total WBC count - 5,000-10,000 WBCS/L below range-leukopenia seen in 'lead, mercury poisoning above range-leukocytosis infection, allergy Leukemia-extrodinarily high leukocytes