Blood (Circulatory System)
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A questions to test yourself about circulatory system ( the blood).
- 1.How much of blood plasma is water (approximately)?
- A.
95%
- B.
91%
- C.
88%
- D.
80%
- E.
50%
- 2.Which of the following plasma proteins plays a role in disease resistance?
- A.
Myoglobin
- B.
Hemoglobin
- C.
Albumins
- D.
Fibrinogens
- E.
Globulins
- 3.Which of the following plasma proteins plays a role in blood clotting?
- A.
Albumins
- B.
Globulins
- C.
Fibrinogens
- D.
Prostaglandins
- E.
None of the above
- 4.A hematocrit measures
- A.
Percentage of total blood volume occupied by RBC
- B.
Percentage of total blood volume occupied by WBC
- C.
Percentage of total blood volume occupied by platelets
- D.
Both A and B
- E.
All of the above
- 5.The process by which formed elements of the blood develop is called:
- A.
Hematocritation
- B.
Hemopoiesis
- C.
Albumin genesis
- D.
Immunology
- E.
None of the above
- 6.A megakaryoblast will develop into
- A.
Red blood cell
- B.
White blood cell
- C.
Platelet
- D.
Both b and c
- E.
Any of the above
- 7.During hemopoiesis, some of the myeloid stem cells differentiate into
- A.
Nitric oxide
- B.
Progenitor cells
- C.
Enzymes
- D.
Plasma proteins
- E.
Heme molecules
- 8.This hormone stimulates proliferation of red blood cells in red bone marrow
- A.
TPO
- B.
Follicle stimulating hormone
- C.
EPO
- D.
Human growth hormone
- E.
Calcitonin
- 9.Ferritin is used to
- A.
Transport iron
- B.
Synthesize iron
- C.
Digest iron
- D.
Store iron
- E.
Convert iron
- 10.A red blood cell's function is
- A.
Gas transport
- B.
Disease resistance
- C.
Blood cell proliferation
- D.
Cytokine stimulation
- E.
Nutrient transport
- 11.An immature red blood cell that lacks a nucleus is called a
- A.
Precursor cell
- B.
Cytokine
- C.
Interleukin
- D.
Reticulocyte
- E.
Proerythroblast
- 12.Which of the following is a phagocyte?
- A.
Lymphocyte
- B.
Basophil
- C.
Mast cell
- D.
Macrophage
- E.
Platelet
- 13.Which of the following reduces blood loss?
- A.
Platelets
- B.
Lymphocyte
- C.
Neutrophil
- D.
Basophil
- E.
Erythrocyte
- 14.Which of the following provides immune responses?
- A.
Platelet
- B.
Eosinophil
- C.
Lymphocyte
- D.
Basophil
- E.
Macrophage
- 15.Which of the following is not an agranular leukocyte?
- A.
Monocytes
- B.
Macrophage
- C.
Lymphocyte
- D.
Basophil
- E.
All of the above
- 16.The process of a white blood cell squeezing between endothelial cells to exit the blood vessel is called
- A.
Hempoiesis
- B.
Emigration
- C.
Wandering
- D.
Adhesion
- E.
Phagocytosis
- 17.Which of the following do mast cells not release?
- A.
Heparin
- B.
Histamine
- C.
Nitric oxide
- D.
Protease
- E.
All of the above
- 18.This hormone causes the development of megakaryoblasts.
- A.
Erythropoietin
- B.
Human growth hormone
- C.
Nitric oxide
- D.
Heparin
- E.
Thrombopoietin
- 19.Once this is formed, the intrinsic and extrinsic pathways are identical.
- A.
Thromboplastin
- B.
Calcium
- C.
Prothrombinase
- D.
Fibrinogen
- E.
Fibrin
- 20.Considering Rh blood types, which of the below situations would result in maternal antibodies attacking the fetus?
- A.
Mom is Rh negative and fetus is Rh positive
- B.
Mom is Rh negative and fetus is Rh negative
- C.
Mom is Rh positive and fetus is Rh negative
- D.
Mom is Rh positive and fetus is Rh positive.
- 21.Which of the following is an anticoagulant?
- A.
Thromboxane A2
- B.
Plasmin
- C.
Heparin
- D.
Fibrinogen
- E.
Protease
- 22.What blood group antibodies does a person with type O blood have in their plasma?
- A.
Anti-A
- B.
Anti-B
- C.
Anti-A and Anti-B
- D.
No blood group specific antibodies
- E.
Varies in different type O people
- 23.What antigens does a person have on their RBC if their plasma has antibody A?
- A.
A
- B.
B
- C.
O
- D.
A and B
- E.
No antigens
- 24.Most of the plasma proteins are synthesized in the
- A.
Liver
- B.
White blood cells
- C.
Bone marrow
- D.
Kidneys
- E.
Spleen
- 25.Inappropriate use of erythropoietin by athletes may cause cardiac and vascular abnormalities as a result of increased blood viscosity.
- A.
True
- B.
False
- 26.Which of the following molecules is correctly matched with its description?
- A.
Transferrin: stores iron ions in the liver
- B.
Ferritin: transports iron ions in the bloodstream
- C.
Biliverdin: pigment derived from heme that is released by the liver into bile
- D.
Urobilinogen: end product of bacterial conversion of bilirubin in the large intestine
- E.
Stercobilin: yellow pigment excreted in the urine
- 27.Agranular leukocytes include
- A.
Lymphocytes
- B.
Monocytes
- C.
Neutrophils
- D.
A and B
- E.
A,B, and C
- 28.Lysozyme, superoxide anion, hydrogen peroxide, and defensins are all part of the pathogen-destroying chemicals used by
- A.
Neutrophils
- B.
Eosinophil
- C.
Basophil
- D.
Lymphocytes
- E.
Monocytes
- 29.Increased numbers of _________ may occur in allergic reactions, parasitic infections, and some autoimmune diseases.
- A.
Basophils
- B.
Monocytes
- C.
Eosinophils
- D.
Lymphocytes
- E.
Neutropils
- 30.Which of the following does NOT contain a nucleus while in the peripheral blood?
- A.
Erythrocytes
- B.
Thrombocytes
- C.
Megakaryocytes
- D.
A and B are correct.
- E.
A, B, and C are correct.
- 31.Stem cells obtained from cord blood may be preferred over those obtained from red bone marrow because
- A.
Stem cells are found in greater numbers in cord blood.
- B.
Fetal and neonatal lymphocytes found in cord blood are less likely to cause graft-versus-host disease.
- C.
Infections occur less frequently with stem cells derived from cord blood.
- D.
Stem cells from cord blood can be stored indefinitely.
- E.
All of the above are correct.
- 32.During the platelet release reaction, serotonin and ADP from the platelets activate nearby platelets while thromboxane A2 acts as a vasoconstrictor.
- A.
True
- B.
False
- 33.Which of the following places events involved in blood clot formation following tissue trauma in the correct order?
- A.
Activation of Factor X; formation of fibrin; formation of thrombin; formation of prothrombinase; clot retraction
- B.
Activation of Factor X; formation of prothrombinase; formation of thrombin; formation of fibrin; clot retraction
- C.
Activation of Factor X; formation of thrombin; formation of prothrombinase; formation of fibrin; clot retraction
- D.
Formation of prothrombinase; activation of Factor X; formation of thrombin; formation of fibrin; clot retraction
- E.
Formation of prothrombinase; formation of thrombin; formation of fibrin; activation of Factor X; clot retraction
- 34.The enlargement of clot to the point where it could block blood flow in undamaged blood vessels is controlled by all of the following EXCEPT:
- A.
Positive feedback loop involving thrombin and factor V.
- B.
Inhibition of platelet adhesion and release by prostacyclin.
- C.
Availability of antithrombin and activated protein C.
- D.
Absorption of thrombin by fibrin in the clot.
- E.
Dispersal of clotting factors by blood flow.
- 35.After testing your blood in the lab, you found that your red cells agglutinated with both anti-A and anti-B antisera. This means that you
- A.
Have A and B antigens on your RBC.
- B.
Have anti-A and anti-B antibodies in your plasma.
- C.
Are AB positive.
- D.
Choices A and B are correct.
- E.
Choices A, B, and C are correct.
- 36.An ABO mismatched blood transfusion can cause acute renal failure because the
- A.
Antibodies in the transfusion damage the cells in the kidney.
- B.
Antigens in the transfusion damage the cells in the kidney.
- C.
Agglutinated red cells get stuck in the capillaries of the kidneys.
- D.
Hemoglobin released from lysed RBC clogs the filtration membrane of the kidneys.
- E.
None of the above are correct.
- 37.If your blood type is O negative, you will have in your plasma antibodies to A, B, and Rh antigens.
- A.
True
- B.
False
- 38.A woman who is Rh negative and a man who is Rh positive had a child who was Rh negative. This means that the next child born to this couple will be at a high risk of developing hemolytic disease of the newborn.
- A.
True
- B.
False
- 39.What is the volume of blood in an average adult male?
- A.
5 to 6 gallons
- B.
5 to 6 liters
- C.
5 to 6 quarts
- D.
A little less than 1 gallon
- 40.A hemopoietic growth factor:
- A.
Are lymphoid cells used in the immune system's defense mode
- B.
Are precursor cells
- C.
Is a hormone that regulates bone growth
- D.
Stimulates absorption of nutrients in the small intestine
- E.
Is a hormone that aids in proliferation of progenitor cells
- 41.The substance that stimulates formation of platelets is:
- A.
Antibodies
- B.
Thrombopoietin
- C.
Cytokines
- D.
Immunoglobulins
- E.
Erythropoietin
- 42.Which of the following statements is true?
- A.
Hypoxia increases the secretion of erythropoietin by the kidneys
- B.
Loss of the nucleus causes swelling of an erythrocyte
- C.
Normally, erythropoiesis outpaces the production of red blood cell destruction
- D.
A reticulocyte has a multilobed nucleus
- E.
Erythropoiesis is the production of white blood cells
- 43.Which of the following is not a factor in destroying attacking pathogens?
- A.
Emigration
- B.
The release of lysozymes
- C.
Erythropoiesis
- D.
Phagocytosis
- E.
Chemotaxis
- 44.An increase in white blood cell count above normal levels is called:
- A.
Erythrocytosis
- B.
Emigration
- C.
Leukopenia
- D.
Erythropoiesis
- E.
Leukocytosis
- 45.The primary responsibility of this white blood cell is to destroy newly formed tumor cells.
- A.
Natural killer cells
- B.
Basophils
- C.
B-cells
- D.
Neutrophils
- E.
T-cells
- 46.Which are the most numerous white blood cells?
- A.
Basophils
- B.
Lymphocytes
- C.
Eosinophils
- D.
Neutrophils
- E.
Monocyte
- 47.Which of the following is not involved in platelet plug formation?
- A.
Platelets sticking to the walls of an injured vessel
- B.
Vasoconstriction due to serotonin release
- C.
Release of platelet-derived-growth-factor (PDGF)
- D.
The release of ADH to make the platelets bind to each other
- E.
All the above occur in platelet plug formation
- 48.A thrombus is:
- A.
A narrowing of the lumen of a vessel
- B.
A medicine used to treat heart attacks
- C.
An air bubble traveling in the blood stream
- D.
A collection of platelets and other cells on the endothelial surface
- E.
A substance that dissolves blood clots
- 49.Hemolytic disease of the newborn does not affect the first-born child because the Rh- mother has not had a chance to build up anti-Rh antibodies to the newborn's Rh+ blood.
- A.
True
- B.
False
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