The blood volume in an adult averages approximatelya. 1 L,b. 3 L,c. 5 L,d. 7 L.

Which of the following is a function of erythrocytes?

The percentage of total volume used to determine the number of erythrocytes in a blood sample is referred to as the __________.

The buffy coat that appears after a sample of blood has been centrifuged contains __________.

Which of the following factors has the greatest effect on making RBCs very efficient oxygen transporters?

Multiple ChoiceMore than one choice may apply.Which would lead to increased erythropoiesis?a. Chronic bleeding ulcerb. Reduction in respiratory ventilationc. Decreased level of physical activityd. Reduced blood flow to the kidneys

The hormonal stimulus that prompts red blood cell formation isa. serotonin,b. heparin,c. erythropoietin,d. thrombopoietin.

The formed elements of the blood include (a) plasma, fibrin, and serum, (b) albumins, globulins, and fibrinogen, (c) WBCs, RBCs, and platelets, (d) all of these.

All of the following are true of RBCs excepta. biconcave disc shape,b. life span of approximately 120 days,c. contain hemoglobin,d. contain nuclei.