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7 Cards in this Set

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Review CH 21: Blood
What are the characteristics of blood?
Body Temp 38c Carries oxygen, carbon dioxide.
Plasma absorbs & distributes heat throughout the body. superficial blood vessels can dilate or constrict to help relase or retain body heat.
pH level is 7.4 required for normal cellular function.
fluid levels maintain bloold pressure
Review CH 21: Blood
What are the basic components of blood?
Erythrocytes: RBC, form the lower layer, 44% of blood sample
Buffy coat: middle layer, contains Leukocytes,WBC, and platelets, <1% of sample
Plasma: straw-colored liquid, forms top layer, 55% of sample
Formed elements: Erythrocytes, Leukocytes, & Platelets
formed elements not cells because loatelets are fragments of cells (megakaryocytes)
Review CH 21: Blood
What are the functions of blood and which components of blood are responsible?
Function:Transportation
Responsible:Erythrocytes, RBC
Function:transports nutrients, hormones, waste products form cells to waste removal organs (Kidneys)
Responsible: Plasma
Function:guard against infection by a pathogen or an antigen
Responsible: Leukocytes WBC
Review CH 21: Blood
What are the components of plasma?
water is the most aubundent compoound in plasma 92%
plasma proteins: 7%
-albumins smallest and most abundndant
-Globulins: 2nd most abundant, Alpha-globulins & Beta-globulins
Gamma-globulins: immunoglobulins or antibodies.
-Fibrinogen; responsible for blood clot formation,
Regulatory Proteins include enzymes, proenzymes, & hormones
other solutes 1% electrolytes (k+, Na+, Ca2+, Cl-), nutrients, respiratrory gases (O2 & CO2), & wastes (Breakdown products of metabolism,lactic acid, creatinine, urea, bilirubin, ammonia)
Review CH 21: Blood
Be able to distinguish between the four classes of plasma protins
-albumins smallest and most abundndant regulate water movementbetween blood and interstitial fuid
-Globulins: 2nd most abundant, Alpha-globulins & Beta-globulins: bind, support, and protect certain water-insolubles.
Gamma-globulins: immunoglobulins or antibodies, soluble protines prodiced by some of our defense cells to protect the body against pathogens that may cause disease.
- Fibrinogen; responsible for blood clot formation, is converted into long, insoluble strands of fibrin
Review CH 21: Blood
what are the differences between the two types of extracellular fluid?
Plasma-









Interstitial Fluid-














Review CH 21: Blood
What is measured by the hematocrit? What is anemia? What is Polycythemia?
HEMATOCRIT: THE % OF THE VLOOD THA CONSISTS OF RBC.
Anemia is an condithion in which the RBC count is less than the normal range.
Polycythemia is the condition of having too many RBC's in the blood.