Shier/Louis/2022 Human Anatomy Physiology Chapters PPT
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This PowerPoint presentation outlines the characteristics of blood, including its composition, components, and role in maintaining homeostasis. It provides details about plasma, red blood cells, white blood cells, and platelets, their relative percentages in a centrifuged blood sample, and conditions related to changes in these values.
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Because learning changes everything. ® Chapter 14 Lecture Outline See separate PowerPoint slides for all figures and tables pre-inserted into PowerPoint without notes. Copyright 2022 © McGraw Hill LLC. All rights reserved. No reproduction or distribution without the...
Because learning changes everything. ® Chapter 14 Lecture Outline See separate PowerPoint slides for all figures and tables pre-inserted into PowerPoint without notes. Copyright 2022 © McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC. 14.1 Characteristics of Blood Blood: Only type of connective tissue with a liquid matrix (plasma) Transports vital substances, regulates processes for homeostasis Maintains stability of interstitial fluid Distributes heat Amount of blood varies with body size, changes in fluid concentration, changes in electrolyte concentration, and amount of adipose tissue Blood is about 8% of body weight; adult blood volume is about 4 to 5 liters in a female and 5 to 6 liters in a male Blood cells: Form mostly in red bone marrow, and are called “formed elements”: Red blood cells (RBCs) White blood cells (WBCs) Platelets (cell fragments) Copyright 2022 © McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC. 2 Figure 14.1 Blood Composition Access the text alternative for slide images. Copyright 2022 © McGraw Hill LLC. All rights reserved. No reproduction or distribution without the prior written consent of McGraw Hill LLC. 3 Components of Centrifuged Blood Samples Blood draw in lab is used to detect blood abnormalities In a centrifuged blood sample: Plasma: Clear, straw-colored fluid matrix of blood About 55% of blood volume Found in top of centrifuge tube Red blood cells (RBCs): 35 to 46% in females, 40 to 54% in males Found in bottom of centrifuge tube Percentage of RBCs is called the Hematocrit (HCT) White blood cells (WBCs) and platelets: Make up 10,500 High WBC count . L Acute infections, vigorous exercise, great loss of body fluids Leukopenia:
