mastering a&p 2 ch. 17 group 1 modules 17.1-17.3 DSM
Why is there a difference in the hematocrit between males and females? Androgens stimulate red blood cell production and estrogens do not. Males have more progesterone than females stimulating red blood cell production. Males have less body fat than females. Males have a faster metabolic rate and need more oxygen.
Androgens stimulate red blood cell production and estrogens do not.
Megakaryocytes are specialized cells of the bone marrow that are responsible for __________. formation of platelets engulfing invading bacteria specific immune responses production of scar tissue in an injured area
formation of platelets
Which category of plasma proteins includes antibodies? Globulins Albumin Fibrinogen Hormones
globulins
A patient developed an obstruction in his renal arteries that restricted blood flow to his kidneys. What change would occur to the formed elements? Hematocrit would increase. Circulating thrombocyte numbers would decrease. Leukocyte numbers would increase. Red blood cell numbers would decrease.
hematocrit would increase.
Jessica has just moved from Orlando, Florida, to Denver, Colorado. What condition is she now experiencing that is stimulating the production of erythropoietin and, consequently, more red blood cells? hypoxia caused by an increase in her elevation above sea level a decrease in the number of existing white blood cells a change in diet, from deep-fried comfort foods to healthy, organic meals increased oxygen concentration in the atmospheric air
hypoxia caused by an increase in her elevation above sea level.
Which plasma protein would you expect to be elevated if you were suffering from strep throat? Immunoglobulins Albumins Transport globulins Fibrinogen
immunoglobulins
Where are most plasma proteins produced? Liver Spleen Kidney Lung
liver
Erythropoietin appears in the plasma when peripheral tissues, especially the kidneys, are exposed to __________. low oxygen concentrations high urine volumes excessive amounts of radiation temperature extremes
low oxygen concentrations
Myeloid stem cells develop into __________________. megakaryocytes T cells B cells natural killer cells
megakaryocytes
Platelets are formed from large cells called __________. megakaryocytes macrophages natural killer cells neutrophils
megakaryocytes
Which of the following is/are not (a) formed element(s)? Plasma Erythrocytes Leukocytes Platelets
plasma
What are the "patrol agents" in the blood that defend the body against toxins and pathogens? White blood cells and antibodies Albumins and globulins Hormones and enzymes Red blood cells and platelets
white blood cells and antibodies
Which of the following statements about blood is false? Blood is slightly acidic, with a pH of 6.5. Blood is used to transport respiratory gases. Blood helps stabilize body temperature. Blood defends against toxins and pathogens.
blood is slightly acidic, with a pH of 6.5.
How much blood does an adult male normally have? 5-6 liters 3-4 liters 4-5 liters 2-3 liters
5-6 liters
How is it that liver disorders can alter the composition and the functional properties of blood? The liver is the primary source of plasma proteins. The proteins synthesized by the liver are filtered out of the blood by the kidneys. The liver synthesizes immunoglobulins and protein hormones. The liver serves as a filter of plasma proteins and pathogens.
The liver is the primary source of plasma proteins.
What is hematocrit? The percentage of formed elements in whole blood. The number of erythrocytes in whole blood. The percentage of leukocytes in whole blood. The number of leukocytes in whole blood.
The percentage of formed elements in whole blood.
Which of the following is not a function of the blood? All of the listed responses are correct. Defend against pathogens Regulation of pH and ion composition of interstitial fluids Transportation of gases, nutrients, hormones, and wastes
all of the listed responses are correct.
What are the major components of the cardiovascular system? blood, heart, and blood vessels red blood cells, white blood cells, and platelets lymph, plasma, and hemoglobin veins, arteries, and capillaries
blood, heart, and blood vessels
A decreased number of megakaryocytes would interfere with what process? Clot formation Antibody production Cell-mediated immunity Phagocytosis of foreign antigens
clot formation
Which of the following are not components of plasma? Elastic fibers Antibodies Dissolved proteins Organic wastes
elastic fibers
In addition to water and proteins, what else make up plasma? Electrolytes, nutrients, and organic wastes Erythrocytes, leukocytes, and platelets Albumins, globulins, and fibrinogen None of the listed responses are correct.
electrolytes, nutrients, and organic wastes.
Which component makes up the largest proportion of the formed elements? Erythrocytes Leucocytes Thrombocytes Water
erythrocytes
Which of the plasma proteins functions in blood clotting? Fibrinogen Globulins Albumin Antibodies
fibrinogen
What kind of tissue is blood? Fluid connective tissue Fibrous connective tissue Epithelial tissue Loose connective tissue
fluid connective tissue
Proportionately, what is the largest component of the plasma, other than water? Proteins Nutrients Electrolytes Wastes
proteins
The formed elements of the blood consist of __________. red and white blood cells and platelets antibodies, metalloproteins, and lipoproteins albumins, globulins, and fibrinogen electrolytes, nutrients, and organic wastes
red and white blood cells and platelets
