Survey
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
Blood Blood is: 55% Plasma 45% Cells What is plasma? Plasma is the liquid portion of blood Plasma is: 91.5% water. Transport medium. 7% proteins, e.g., clotting factors, antibodies 1.5% other solutes, e.g., hormones,vitamins, amino acids, glucose, fatty acids, nitrogen wastes, electrolytes (Ca++, Na+, K+, H+) What kinds of cells do we find in the blood? Red Blood Cells (RBCs) = Erythrocytes • >99% of total blood cells are RBCs • ~5 million/ml • Hb • Fe • Transport O2 and CO2 • No nucleus when mature Platelets = Thrombocytes • Involved in blood clotting • 150,000 – 400,000/ml White Blood Cells (WBCs) = Leukocytes Defense system 5,000 – 10,000/ml There are 5 different types of WBCs Neutrophils = PMNs = Polymorphonucleocytes or Poly’s • Most abundant of the WBCs • Phagocytic • Kill bacteria Basophils • Release histamine. • Their numbers increase in allergic reactions Eosinophils • Fight parasitic infections • Some allergic reactions, esp. asthma, are the result of the malfunctioning of eosinophils. Lymphocytes • Produce antibodies • Fight viruses What % of blood is plasma? A.) 65 B.) 45 C.) 55 D.) 90 Monocytes • Size-wise, is largest of the WBCs • Phagocytic • Large kidney-shaped nucleus The blood cell that releases histamine in an allergic reaction is A.) neutrophil B.) basophil C.) esinophil D.) lymphycyte Important Hematology Lab Terms 1. CBC = Complete Blood Count Normal (nl) values: RBCs: 4.2-5.9 million/ml WBCs: 5,000-10,000/ml Platelets: 100,000 – 400,000/ml CBC c diff (differential) Nl values: PMNs: 60-70% Lymphos: 20-25% Monos: 3-8% Eos: 2-4% Basos: 0.5-1% Hematocrit (or ‘crit, if you want to sound cool) The percent of whole blood made up of red blood cells. Nl value: 40-50% Let’s run a virtual hematocrit http://scienceu.fsu.edu/content/virtuallab/hematology/docs/hematocrit.html Hemoglobin – Hb Do you remember what hemoglobin is? A nl hemoglobin value is 12-16g/dl WBC that fight viruses are A.) Esinophils B.) Lymphocytes C.) Basophils The most abundant kind of Leukocytes are A.) Netrophils B.) Basophils C.) Monophils D.) Esinophils How many kinds of leukocytes are there A.) 4 B.) 5 C.) 2 D.) 3 The largest WBC is A.) Neutophils B.) Basophils C.) Monocytes D.) Esinophils