What is sickle cell disease? White Blood Cells (WBC) = Leukocytes:Figure 17.10 on page 640 in the textbook has pictures of the WBC’sWBCs protect against diseases and are produced in response to hormones.Five types of white blood cells are in circulating blood and are distinguished by size, granularappearance of the cytoplasm, shape of the nucleus, and staining characteristics.WBC counts:Normally, a cubic milliliter of blood contains between __5000___________ & ___10000_____________ white blood cells. A ___differential______________________ white blood cell count can help pinpoint the nature of an illness, indicating whether it is caused by bacteria or viruses.Acute infections cause an excess of WBCs known as ___leukocytosis______________.A deficiency of WBCs, called ___leukopenia_______, can also indicate a variety of infections including AIDS.What is leukemia? proliferate out of control, impairing normal red bone marrow function.Granulocytes: Why is this group called granulocytes? __________-staining fine cytoplasmic granules and a multi______-lobed nucleus; they comprise most of the leukocytes.What is their function? 4
What does diapedesis mean? Eosinophils:Eosinophils have coarse granules that stain deep _red______ , a _bi_________-lobed nucleus.What are their functions?