Question 1

Which form of iron (Fe)can be used in the formation of normal hemoglobin?

Accepted Answer

A)  Fe+ 
B)  Fe2+ 
C)  Fe3+ 
D)  Fe4+ 
A)  Fe+ 
B)  Fe2+ 
C)  Fe3+ 
D)  Fe4+ B

Question 2

What is the role of thromboxane A (TXA₂)in the secretion stage of hemostasis?

Accepted Answer

A)  Stimulates the synthesis of serotonin. 
B)  Promotes vasodilation. 
C)  Stimulates platelet aggregation. 
D)  Promotes formation of cyclooxygenase. 
A)  Stimulates the synthesis of serotonin. 
B)  Promotes vasodilation. 
C)  Stimulates platelet aggregation. 
D)  Promotes formation of cyclooxygenase. C

Question 3

The drug heparin acts in hemostasis by which processes?

Accepted Answer

A)  Inhibiting thrombin and antithrombin III (AT-III) 
B)  Preventing the conversion of prothrombin to thrombin 
C)  Shortening the fibrin strands to retract the blood clot 
D)  Degrading the fibrin within blood clots 
A)  Inhibiting thrombin and antithrombin III (AT-III) 
B)  Preventing the conversion of prothrombin to thrombin 
C)  Shortening the fibrin strands to retract the blood clot 
D)  Degrading the fibrin within blood clots A

Question 4

What is plasmin's role in the clotting process?

Accepted Answer

A)  Stimulates platelet aggregation. 
B)  Inhibits platelet adhesion and aggregation. 
C)  Prevents the conversion of prothrombin to degrade the fibrin within blood clots. 
D)  Degrades the fibrin within blood clots. 
A)  Stimulates platelet aggregation. 
B)  Inhibits platelet adhesion and aggregation. 
C)  Prevents the conversion of prothrombin to degrade the fibrin within blood clots. 
D)  Degrades the fibrin within blood clots.

Question 5

What changes to the hematologic system is related to age?

Accepted Answer

A)  Platelet adhesiveness decreases. 
B)  Lymphocyte function decreases. 
C)  Cellular immunity increases. 
D)  Erythrocyte reproduction accelerates. 
A)  Platelet adhesiveness decreases. 
B)  Lymphocyte function decreases. 
C)  Cellular immunity increases. 
D)  Erythrocyte reproduction accelerates.

Question 6

Which of the following is the role of nitric oxide (NO)in hemostasis?

Accepted Answer

A)  Stimulates the release of fibrinogen to maintain the platelet plug. 
B)  Stimulates the release of clotting factors V and VII. 
C)  Causes vasoconstriction and stimulates platelet aggregation. 
D)  Controls platelet activation through cyclic adenosine monophosphate (cAMP)-mediated signaling. 
A)  Stimulates the release of fibrinogen to maintain the platelet plug. 
B)  Stimulates the release of clotting factors V and VII. 
C)  Causes vasoconstriction and stimulates platelet aggregation. 
D)  Controls platelet activation through cyclic adenosine monophosphate (cAMP)-mediated signaling.

Question 7

Which statements about plasma proteins are correct? (Select all that apply.)

Accepted Answer

A)  Provide clotting factors. 
B)  Transport triglycerides. 
C)  Synthesize complement proteins. 
D)  Create hydrostatic pressure. 
E)  Transport cholesterol. 
A)  Provide clotting factors. 
B)  Transport triglycerides. 
C)  Synthesize complement proteins. 
D)  Create hydrostatic pressure. 
E)  Transport cholesterol.

Question 8

What does polycythemia at birth indicate?

Accepted Answer

A)  Hypoxia in utero 
B)  Dysfunctional bone marrow 
C)  Congenitally absent spleen 
D)  Dehydration in utero 
A)  Hypoxia in utero 
B)  Dysfunctional bone marrow 
C)  Congenitally absent spleen 
D)  Dehydration in utero

Question 9

Which substance is used to correct the chronic anemia associated with chronic renal failure?

Accepted Answer

A)  Iron 
B)  Erythropoietin 
C)  Cobalamin (vitamin B12) 
D)  Folate 
A)  Iron 
B)  Erythropoietin 
C)  Cobalamin (vitamin B12) 
D)  Folate

Question 10

Which hemoglobin is made from oxidized ferric iron (Fe³⁺)and lacks the ability to bind oxygen?

Accepted Answer

A)  Deoxyhemoglobin 
B)  Oxyhemoglobin 
C)  Methemoglobin 
D)  Glycosylated hemoglobin 
A)  Deoxyhemoglobin 
B)  Oxyhemoglobin 
C)  Methemoglobin 
D)  Glycosylated hemoglobin

Question 11

Match the descriptions with the corresponding terms.
-Phagocytosis

Accepted Answer

A) Clotting 
B) Red blood cell development 
C) Red blood cell destruction 
D) Platelet formation 
E) Blood cell production 
A) Clotting 
B) Red blood cell development 
C) Red blood cell destruction 
D) Platelet formation 
E) Blood cell production

Question 12

Fetal hematopoiesis occurs in which structure?

Accepted Answer

A)  Gut 
B)  Spleen 
C)  Bone marrow 
D)  Thymus 
A)  Gut 
B)  Spleen 
C)  Bone marrow 
D)  Thymus

Question 13

Which statements characterize albumin? (Select all that apply.)

Accepted Answer

A)  Retains sodium to maintain water balance. 
B)  Provides colloid osmotic pressure. 
C)  Is synthesized in the liver. 
D)  Is a carrier for drugs that have low water solubility. 
E)  Is a small molecule 
A)  Retains sodium to maintain water balance. 
B)  Provides colloid osmotic pressure. 
C)  Is synthesized in the liver. 
D)  Is a carrier for drugs that have low water solubility. 
E)  Is a small molecule

Question 14

What is the role of collagen in the clotting process?

Accepted Answer

A)  Initiates the clotting cascade. 
B)  Activates platelets. 
C)  Stimulates fibrin. 
D)  Deactivates fibrinogen. 
A)  Initiates the clotting cascade. 
B)  Activates platelets. 
C)  Stimulates fibrin. 
D)  Deactivates fibrinogen.

Question 15

Which characteristics allow erythrocytes to function as gas carriers? (Select all that apply.)

Accepted Answer

A)  Permanent shape 
B)  Compactness 
C)  Reversible deformability 
D)  Presence of hyperactive mitochondria 
E)  Biconcavity 
A)  Permanent shape 
B)  Compactness 
C)  Reversible deformability 
D)  Presence of hyperactive mitochondria 
E)  Biconcavity

Question 16

What is the function of erythrocytes?

Accepted Answer

A)  Tissue oxygenation 
B)  Hemostasis 
C)  Infection control 
D)  Allergy response 
A)  Tissue oxygenation 
B)  Hemostasis 
C)  Infection control 
D)  Allergy response

Question 17

Which blood cells are the chief phagocytes involved in the early inflammation process?

Accepted Answer

A)  Neutrophils 
B)  Monocytes 
C)  Eosinophils 
D)  Erythrocytes 
A)  Neutrophils 
B)  Monocytes 
C)  Eosinophils 
D)  Erythrocytes

Question 18

Recycling of iron from erythrocytes is made possible by which of the following?

Accepted Answer

A)  Transferrin 
B)  Hemosiderin 
C)  Apoferritin 
D)  Erythropoietin 
A)  Transferrin 
B)  Hemosiderin 
C)  Apoferritin 
D)  Erythropoietin

Question 19

What are the primary anticoagulant mechanisms? (Select all that apply.)

Accepted Answer

A)  Antithrombin III 
B)  Tissue factor pathway inhibitor 
C)  Hematopoiesis 
D)  Protein C 
E)  Phagocytosis 
A)  Antithrombin III 
B)  Tissue factor pathway inhibitor 
C)  Hematopoiesis 
D)  Protein C 
E)  Phagocytosis

Question 20

Which statements are true regarding the role of the endothelium in clot formation? (Select all that apply.)

Accepted Answer

A)  The surface of the endothelium produces plasma protease inhibitors. 
B)  Plasma protease inhibitors assist in preventing clot formation. 
C)  Thrombomodulin is a protein that is converted on the surface of endothelial cells. 
D)  Protein A binds to thrombomodulin. 
E)  Activated protein C enhances the adhesion ability of neutrophils. 
A)  The surface of the endothelium produces plasma protease inhibitors. 
B)  Plasma protease inhibitors assist in preventing clot formation. 
C)  Thrombomodulin is a protein that is converted on the surface of endothelial cells. 
D)  Protein A binds to thrombomodulin. 
E)  Activated protein C enhances the adhesion ability of neutrophils.

Exam 27: Structure and Function of the Hematologic System

Which form of iron (Fe)can be used in the formation of normal hemoglobin?

What is the role of thromboxane A (TXA₂)in the secretion stage of hemostasis?

The drug heparin acts in hemostasis by which processes?

What is plasmin's role in the clotting process?

What changes to the hematologic system is related to age?

Which of the following is the role of nitric oxide (NO)in hemostasis?

Which statements about plasma proteins are correct? (Select all that apply.)

What does polycythemia at birth indicate?

Which substance is used to correct the chronic anemia associated with chronic renal failure?

Which hemoglobin is made from oxidized ferric iron (Fe³⁺)and lacks the ability to bind oxygen?

Match the descriptions with the corresponding terms. -Phagocytosis

Fetal hematopoiesis occurs in which structure?

Which statements characterize albumin? (Select all that apply.)

What is the role of collagen in the clotting process?

Which characteristics allow erythrocytes to function as gas carriers? (Select all that apply.)

What is the function of erythrocytes?

Which blood cells are the chief phagocytes involved in the early inflammation process?

Recycling of iron from erythrocytes is made possible by which of the following?

What are the primary anticoagulant mechanisms? (Select all that apply.)

Which statements are true regarding the role of the endothelium in clot formation? (Select all that apply.)

Cellular Biology

Altered Cellular and Tissue Biology

The Cellular Environment: Fluids and Electrolytes, Acids and Bases

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Epigenetics and Disease

Innate Immunity: Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation

Infection

Stress and Disease

Cancer Biology

Cancer Epidemiology

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Alterations in Cognitive Systems,Cerebral Hemodynamics,and Motor Function

Disorders of the Central and Peripheral Nervous Systems and the Neuromuscular Junction

Neurobiology of Schizophrenia, Mood Disorders, and Anxiety Disorders

Alterations of Neurologic Function in Children

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Structure and Function of the Reproductive Systems

Alterations of the Female Reproductive System

Alterations of the Male Reproductive System

Sexually Transmitted Infections

Alterations of Erythrocyte Function

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Alterations of Pulmonary Function in Children

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Adults

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Children

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