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Which below is NOT true of eosinophils?


A) They are weakly phagocytic.
B) They are attracted to and can kill certain parasites.
C) They help control inflammation and allergy responses.
D) They become macrophages.

E) A) and C)
F) A) and B)

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What is the function of a megakaryocyte?


A) It is a cell from which all types of white blood cells develop.
B) It is a cell from which monocytes develop.
C) It is the stem cell from which all blood cells develop.
D) It is a cell that forms many platelets.

E) A) and B)
F) None of the above

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Normally,there are 5 different types of white blood cells in the circulating blood.

A) True
B) False

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Of the plasma electrolytes,the most abundant are


A) sodium and chloride ions.
B) sodium and potassium ions.
C) potassium and calcium ions.
D) phosphate and sulfate ions.
E) magnesium and phosphate ions.

F) A) and B)
G) A) and C)

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As a platelet plug forms,platelets release the vasoconstricting substance called


A) collagen.
B) creatine.
C) serotonin.
D) fibrin.
E) acetylcholine.

F) A) and B)
G) None of the above

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Which type of white blood cells leave circulation and become macrophages?


A) neutrophils
B) lymphocytes
C) monocytes
D) eosinophils
E) basophils

F) A) and C)
G) A) and B)

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The most abundant type of plasma protein is __________.

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Which of the following elements is included in hemoglobin molecules?


A) cobalt
B) copper
C) iron
D) iodine
E) calcium

F) B) and C)
G) A) and C)

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Which of the following is NOT required in the formation of a blood clot?


A) calcium
B) fibrinogen
C) prothrombin
D) albumin
E) vitamin K

F) A) and B)
G) B) and D)

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Formation of red blood cells is stimulated by this hormone.


A) aldosterone
B) erythropoietin
C) ACTH
D) calcitonin
E) somatomedin

F) None of the above
G) B) and E)

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The normal white blood cell count is between


A) 400-1,100 cells per microliter of blood.
B) 4,000-11,000 cells per microliter of blood.
C) 40,000-110,000 cells per microliter of blood.
D) 4,000,000-11,000,000 cells per microliter of blood.
E) 130,000-360,000 cells per microliter of blood.

F) None of the above
G) All of the above

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Formed elements of the blood include proteins,cells,and cell fragments.

A) True
B) False

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Plasma makes up more than half (55%)of the volume of blood.

A) True
B) False

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What term refers to a white cell count that is lower than normal?


A) leukocytocis
B) polycythemia
C) leukopenia
D) thrombocytosis
E) hemolytic anemia

F) C) and D)
G) B) and E)

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__________ is the term used to describe the stoppage of bleeding by any one of several means.

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A build up of bilirubin causes the yellowish coloration seen in jaundice.

A) True
B) False

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Vitamin B12 is important for the production of red blood cells because it is utilized in the synthesis of ___________.

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What is the average life span of a granulocyte?


A) 4 months
B) 30 days
C) 2 weeks
D) 12 hours
E) none of these

F) B) and D)
G) C) and D)

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Normally the most common type of leukocyte in a blood sample is the ________.

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These are the largest white blood cells (WBCs) ,make up 3% - 9% of circulating WBCs,and have a life span of weeks or even months.


A) neutrophils
B) lymphocytes
C) monocytes
D) eosinophils
E) basophils

F) B) and E)
G) A) and E)

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