Chapter 29

Chapter 29 - Chapter 29 Blood 1 Composition of Blood Blood is sticky Color varies from scarlet to dark red The pH of blood is 7.357.45 Temperature

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Chapter 29 Blood 1
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Composition of Blood ¢ Blood is sticky ¢ Color varies from scarlet to dark red ¢ The pH of blood is 7.35–7.45 ¢ Temperature is 38C ¢ Average volume: 5–6 L for males, and 4–5 L for females 2
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Composition of Blood ¢ It is composed of liquid plasma and formed elements ¢ Formed elements include: l Erythrocytes, or red blood cells (RBCs) l Leukocytes, or white blood cells (WBCs) l Platelets 3
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Blood Plasma - Matrix ¢ Blood plasma contains over 100 solutes, including: l Water – 90% l Proteins – albumin, globulins, clotting proteins, and others l Organic nutrients – glucose, carbohydrates, amino acids l Electrolytes – sodium, potassium, calcium, chloride, bicarbonate l Respiratory gases – oxygen and carbon dioxide 4
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Components of Whole Blood Figure 17.1 5
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Erythrocytes (RBCs) ¢ Biconcave discs, anucleate, essentially no organelles ¢ Filled with hemoglobin (Hb), a protein that functions in gas transport ¢ Red or pink ¢ 4.5million to 5.0 million cells/mm3 ¢ Life span – 100 to 120 days 6
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Erythrocytes (RBCs) Figure 17.3 7
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Components of Whole Blood Figure 17.2 8
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Leukocytes (WBCs) ¢ 4000-11000 cells/mm3 ¢ Nucleated ¢ Diapedesis ¢ Divided into 2 groups: l Granulocytes and agranulocytes 9
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Granulocytes ¢ Granulocytes – neutrophils, eosinophils, and basophils l Contain cytoplasmic granules that stain specifically (acidic, basic, or both) with Wright’s stain l Are larger and usually shorter-lived than RBCs l Have lobed nuclei l Are all phagocytic cells 10
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Neutrophils ¢ Neutrophils have two types of granules that: l Take up both acidic and basic dyes l Give the cytoplasm a lilac color ¢
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This note was uploaded on 01/06/2012 for the course BIOL 2402 taught by Professor Elainefanin during the Fall '11 term at Collins.

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Chapter 29 - Chapter 29 Blood 1 Composition of Blood Blood is sticky Color varies from scarlet to dark red The pH of blood is 7.357.45 Temperature

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