I11 - 6. typical volume in adult male 5-6 liters 7. typical...

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Physiology of Blood I. Components, Characteristics, Functions of Blood A. Major Components of Blood 1. formed elements - the actual cellular components of blood (special connective tissue) a. erythrocytes - red blood cells b. leukocytes - white blood cells c. platelets - cell fragments for clotting 2. blood plasma - complex non-cellular fluid surrounding formed elements; protein & electrolytes B. Separation of Components in a Centrifuge VOLUME LAYER 1. clear/yellowish PLASMA 55% top 2. thin/whitish buffy coat <1% middle 3. reddish mass - ERYTHROCYTES 45% bottom hematocrit - percentage by VOLUME of erythrocytes when blood is centrifuged (normal = 45%) C. Characteristics of Blood 1. bright red (oxygenated) 2. dark red/purplish (unoxygenated) 3. much more dense than pure water 4. pH range from 7.35 to 7.45 (slightly alkaline) 5. slightly warmer than body temperature 100.4 F
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Unformatted text preview: 6. typical volume in adult male 5-6 liters 7. typical volume in adult female 4-5 liters 8. typically 8% of body weight D. Major Functions of Blood 1. Distribution &amp; Transport a. oxygen from lungs to body cells b. carbon dioxide from body cells to lungs c. nutrients from GI tract to body cells d. nitrogenous wastes from body cells to kidneys e. hormones from glands to body cells Physiology of Blood 2. Regulation (maintenance of homeostasis) a. maintenance of normal body pH i. blood proteins (albumin) &amp; bicarbonate b. maintenance of circulatory/interstitial fluid i. electrolytes aid blood proteins (albumin) c. maintenance of temperature (blushed skin) 3. Protection a. platelets and proteins &quot;seal&quot; vessel damage b. protection from foreign material &amp; infections i. leukocytes, antibodies, complement proteins...
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This note was uploaded on 01/29/2012 for the course SCIE SYG2000 taught by Professor Bernhardt during the Fall '10 term at Broward College.

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I11 - 6. typical volume in adult male 5-6 liters 7. typical...

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