Chapter 19- the Cardiovascular System: the Blood

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Chapter 19- The Cardiovascular System: The Blood
 
1) Which of the following is NOT function of blood?
A) transports nutrients, wastes and gases
B) regulates pH
C) defends against infection
D) promote blood loss
E) distribute heat
 
2) Which of the following is correct?
A) A 100 lb (45 Kg) woman will have about 8 lb (3.6 Kg) of blood. B) Most adult humans have between 4 and 6 L of blood, depending on their size. C) Normal blood is less viscous than water and has a neutral pH. D) A and B are correct.

E) A, B and C are correct.
 
3) Each of the following is a constituent of plasma EXCEPT
A) water
B) proteins
C) formed elements
D) nutrients
E) gases
 
4) Which of the following are plasma proteins made by the liver?  
A) albumins
B) fibrinogens
C) globulins
D) immunoglobulins
E) All except D are correct.
 
5) Which of the following are cells found in the blood?
A) erythrocytes
B) leukocytes
C) platelets
D) A and B are correct.
E) A, B and C are correct.
 
6) Which of the following hematocrit values indicates that a patient has polycythemia? A) 62%
B) 47%
C) 42%
D) 37%
E) 25%
 
7) Which of the following is correct?
A) Most formed elements survive for years.
B) Pluripotent cells become myeloid stem cells or lymphoid stem cells. C) All of newborn’s bone marrow is yellow marrow.
D) Red marrow can be converted to yellow marrow if the body needs to make more blood cells. E) Blood cells are formed in the adult liver, spleen, thymus, and lymph nodes.  
8) At which stage do developing blood cells lose their ability to reproduce themselves? A) hemocytoblast
B) myeloid stem cell
C) progenitor cell
D) precursor (-blast) cell
E) mature blood cell
 
9) Which of the following does not arise from a myeloid stem cell? A) lymphocyte
B) monocyte
C) eosinophil
D) platelet
E) red blood cell
 
10) A patient suffering from systemic lupus erythematosus has renal and hepatic damage.  How might that damage affect her blood?s erythematosus loid stem cell? ce themselves?ells.  
A) Her kidneys may not make enough EPO, causing her to be anemic. B) Her liver may not make enough TPO, causing her to bleed more profusely. C) Her kidneys may not make enough cytokines, causing her to be more prone to infection. D) A and B are correct.

E) A, B and C are correct.
 
11) Which of the following is NOT correct?
A) Mature red blood cells are called erythrocytes.
B) RBCs have a spheroidal shape.
C) The average life span of an erythrocyte is 120 days.
D) Most adults have around 5 million RBCs/µL of blood.
E) The body produces about 2 million erythrocytes per second.  
12) Hemoglobin
A) constitutes 90% of an erythrocyte’s mass.
B) consists of one alpha and one beta chain of protein.
C) has a central protein called heme.
D) has an Fe2+ at the center of it’s heme group.
E) binds CO2 to the Fe2+ at the center of it’s heme group.  
13) Hemoglobin
A) transports most of the O2 and about 23% of the CO2 between the tissues and the lungs. B) abnormalities seldom affect RBC shape or durability.
C) has no effect on blood pressure and blood distribution.
D) A1c levels can be used to monitor the blood Na+ levels.
E) contributes no color to erythrocytes.
 
14) When hemoglobin is recycled, what happens to the heme group? A) It is digested into amino acids, which are used by cells to build new proteins. B) It is transported back to the bone marrow by ferritin or transferrin. C) It is converted to biliverdin and then to bilirubin.

D) A and B are correct.
E) A, B and C are correct.
 
15) Erythropoiesis
A) increases in response to elevated levels of O2.
B) increases in response to depressed levels of EPO.
C) requires amino acids, vitamin B6, and iron ions.
D) normally keeps pace with RBC destruction.
E) occurs more slowly at higher altitudes.
 
16) White blood cells, which are also known as leukocytes,
A) include the granulocytes: neutrophils, eosinophils and basophils. B) include the agranulocytes:...
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