BIO202 - CH17 - Blood - Marieb/Hoehn - RioSalado - AZ
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each of the black spaces below before clicking
on it to display the answer.
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| What are the formed elements of blood? | Living blood cells (erythrocytes, leukocytes) & platelets
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| What is plasma? | Nonliving fluid matrix of blood
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| What are erythrocytes? | Red blood cells (RBC)
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| Buffy coat is? | Whitish layer found through centrifuge that contains leukocytes & platelets
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| What are leukocytes? | White blood cells (WBC)
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| Erythrocytes constitute about __% of blood volume sample, a percentage known as __. | 45%, hematocrit
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| Hematocrit is? | %of erythrocytes in whole blood sample.
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| Normal hematocrit in males is __%, females __% | 47% +/- 5%, 42% +/- 5%
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| Leukocytes & platelets contribute less than __ % of blood volume. | 1%
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| Plasma makes up about __% of whole blood. | 55%
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| Blood is slightly __ with a pH of __. | alkaline, 7.35 - 7.45
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| Blood is __ than body temp. | hotter - about 100.4 degrees F.
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| Blood accounts for about __ % of body weight. | 8%
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| Blood volume in males = __ & females = __. | 5-6L, 4-5 L
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| 3 roles of blood. | Distribution, regulation & protection
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| 3 ways blood regulates functions in body. | Body temp (distributing heat t/o), pH (buffers), & fluid volume
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| 2 ways blood is protective. | Preventing blood loss (platelets & proteins) & preventing infection (antibodies, WBCs)
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| 90% of plasma is? | Water
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| Plasma proteins account for __% of plasma volume. | 8%
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| Except for hormones & gamma globulins, most plasma proteins are produced by __. | Liver
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| 60% of plasma proteins are __. | Albumin
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| Albumin | Blood buffer - main contributor to osmotic pressure - 60% of plasma protein - carrier to shuttle certain molecules.
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| Of the formed elements, only __ are complete cells. | Leukocytes or WBCs
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| Erythrocytes (RBCs) are little more than __. | "Bags" of hemoglobin (Hb).
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| Platelets | Any of the membrane-bound fragments in blood that release substances necessary for clot formation - come from megakaryocytes.
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| A CBC includes counts of? | The different types of formed elements.
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| If severe need for blood cell production, the __ & __ may resume fetal blood-forming roles. | Liver & spleen
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| Hematoma | Bruise - accumulated, clotted blood in the tissues
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| Myeloproliferative disorder | Leukoerythroblastic disorder involving fibrosis of bone marrow, polycthemia vera, and leukemia.
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| Plasmapheresis | Plasma is removed, sepated from formed elements, & formed elements returned to patient or donor.
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| Septicemia | Blood poisoning - Situation of excessive and harmful levels of bacteria or their toxins in blood.
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