QUESTIONS AND ANSWERS
Blood is a ________. - ANS connective tissue
Plasma makes up the __________________ in blood. - ANS Liquid ground substance
Blood is composed of __________ (55%), and ________________ (45%) - ANS plasma,
formed elements
Plasma is composed of 92% water, amino acids, proteins, and which 7 other elements? List
them: - ANS CHO
lipids
Vitamins
Hormones
Electrolytes
Cellular wastes
Antibodies
formed elements (aka packed cell vol. PCV) include - ANS erythrocytes (RBC's), leukocytes
(WBC's), platelets
Erythrocytes (RBC's) make up how much of the PCV? (Formed elements) - ANS 99.9%
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, Leukocytes (WBC's) and Platelets each make up how much of the PCV? (Formed elements) -
ANS < 0.1%
RBC volume = - ANS hematocrit (HTC)
WBC's and platelets form the ____________? - ANS Buffy coat
Hemocytoblasts (stem cells) mature into ________________ via
_____________________________. - ANS All blood cell types & platelets
Colony stimulating factors & interleukins
What are the 3 characteristics of RBC's? - ANS Biconcave discs
33% by vol hemoglobin
Lack nuclei & organelles
How does biconcave disc shape help RBC's? - ANS Increase surface area for diffusion, allows
folding
Hemoglobin bonds w/ oxygen to yield: - ANS Oxyhemoglobin
Blood w/ oxyhemoglobin is: - ANS Bright red
Blood with ___________________ is dark red & appears blue thru light colored skin. -
ANS Deoxyhemoglobin
Low blood oxygen (___________) will increase deoxyhemoglobin, turning skin & mucous
membranes blue (_____________). - ANS Hypoxia
Cyanosis
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