Question 1

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

Accepted Answer

A)  Nitric oxide (NO)stimulates the release of fibrinogen to maintain the platelet plug. 
B)  Nitric oxide (NO)stimulates the release of clotting factors V and VII. 
C)  Nitric oxide (NO)causes vasoconstriction and stimulates platelet aggregation. 
D)  Nitric oxide (NO)causes vasodilation and inhibits platelet adhesion and aggregation. 
A)  Nitric oxide (NO)stimulates the release of fibrinogen to maintain the platelet plug. 
B)  Nitric oxide (NO)stimulates the release of clotting factors V and VII. 
C)  Nitric oxide (NO)causes vasoconstriction and stimulates platelet aggregation. 
D)  Nitric oxide (NO)causes vasodilation and inhibits platelet adhesion and aggregation.

Question 2

The surface of the endothelium produces plasma protease inhibitors to resist clot formation.

Accepted Answer

A) True 
 B)False

Question 3

_____ are formed elements of the blood that are not cells,but disk-shaped cytoplasmic fragments essential for blood clotting.

Accepted Answer

A)  Monocytes 
B)  Platelets 
C)  Macrophages 
D)  Erythrocytes 
A)  Monocytes 
B)  Platelets 
C)  Macrophages 
D)  Erythrocytes

Question 4

Match the macrophage to its location.
-Nervous system

Accepted Answer

A) Kupffer's cells 
B) Alveolar macrophages 
C) Microglial cells 
D) Mesangial cells 
E) Langerhans cells 
A) Kupffer's cells 
B) Alveolar macrophages 
C) Microglial cells 
D) Mesangial cells 
E) Langerhans cells

Question 5

Polycythemia at birth may 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 6

What is the role of plasmin in the clotting process?

Accepted Answer

A)  It stimulates platelet aggregation. 
B)  It inhibits platelet adhesion and aggregation. 
C)  It prevents the conversion of prothrombin to degrade the fibrin within blood clots. 
D)  It degrades the fibrin within blood clots. 
A)  It stimulates platelet aggregation. 
B)  It inhibits platelet adhesion and aggregation. 
C)  It prevents the conversion of prothrombin to degrade the fibrin within blood clots. 
D)  It degrades the fibrin within blood clots.

Question 7

In the clotting process,collagen provides a particularly strong stimuli to activate platelets.

Accepted Answer

A) True 
 B)False

Question 8

Match the macrophage to its location.
-Liver

Accepted Answer

A) Kupffer's cells 
B) Alveolar macrophages 
C) Microglial cells 
D) Mesangial cells 
E) Langerhans cells 
A) Kupffer's cells 
B) Alveolar macrophages 
C) Microglial cells 
D) Mesangial cells 
E) Langerhans cells

Question 9

What is the effect of low albumin in plasma?

Accepted Answer

A)  Clotting factors decrease,thus increasing the chance of prolonged bleeding. 
B)  Fewer immunoglobulins are synthesized,thus impairing the immune function. 
C)  Less iron is stored,thus increasing the incident of iron deficient anemia. 
D)  Osmotic pressure decreases,thus water moves from the capillaries to the interstitium. 
A)  Clotting factors decrease,thus increasing the chance of prolonged bleeding. 
B)  Fewer immunoglobulins are synthesized,thus impairing the immune function. 
C)  Less iron is stored,thus increasing the incident of iron deficient anemia. 
D)  Osmotic pressure decreases,thus water moves from the capillaries to the interstitium.

Question 10

During an infection,lymph nodes enlarge and become tender because:

Accepted Answer

A)  of the proliferation of macrophages. 
B)  the nodes are inflamed. 
C)  the nodes filled with purulent exudate. 
D)  the nodes are not functioning properly. 
A)  of the proliferation of macrophages. 
B)  the nodes are inflamed. 
C)  the nodes filled with purulent exudate. 
D)  the nodes are not functioning properly.

Question 11

Where does fetal hematopoiesis occur?

Accepted Answer

A)  In the gut 
B)  In the liver 
C)  In the bone marrow 
D)  In the thymus 
A)  In the gut 
B)  In the liver 
C)  In the bone marrow 
D)  In the thymus

Question 12

Match the macrophage to its location.
-Skin

Accepted Answer

A) Kupffer's cells 
B) Alveolar macrophages 
C) Microglial cells 
D) Mesangial cells 
E) Langerhans cells 
A) Kupffer's cells 
B) Alveolar macrophages 
C) Microglial cells 
D) Mesangial cells 
E) Langerhans cells

Question 13

_____ are blood cells that differentiate into macrophages.

Accepted Answer

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

Question 14

Removing the stomach with its parietal cells would prevent the absorption of an essential nutrient necessary to prevent which type of anemia?

Accepted Answer

A)  Iron deficiency 
B)  Pernicious anemia 
C)  Folic acid deficiency anemia 
D)  Aplastic anemia 
A)  Iron deficiency 
B)  Pernicious anemia 
C)  Folic acid deficiency anemia 
D)  Aplastic anemia

Question 15

Where is iron absorbed?

Accepted Answer

A)  Stomach 
B)  Duodenum 
C)  Proximal jejunum 
D)  Ascending colon 
A)  Stomach 
B)  Duodenum 
C)  Proximal jejunum 
D)  Ascending colon

Question 16

What is the life span of an erythrocyte?

Accepted Answer

A)  20 to 30 days 
B)  100 to 120 days 
C)  200 to 240 days 
D)  indefinite 
A)  20 to 30 days 
B)  100 to 120 days 
C)  200 to 240 days 
D)  indefinite

Question 17

Which nutrients are necessary for the synthesis of DNA and maturation of erythrocytes?

Accepted Answer

A)  Protein and niacin 
B)  Iron and vitamin B6 (pyridoxine) 
C)  Cobalamin (vitamin B12)and folate 
D)  Pantothenic acid and vitamin C 
A)  Protein and niacin 
B)  Iron and vitamin B6 (pyridoxine) 
C)  Cobalamin (vitamin B12)and folate 
D)  Pantothenic acid and vitamin C

Question 18

Which of the following shows a correct sequence in the development of erythrocytes?

Accepted Answer

A)  Normoblast,reticulocyte,and basophilic erythroblast 
B)  Basophilic erythroblast,normoblast,and reticulocyte 
C)  Normoblast,committed proerythroblast,and reticulocyte 
D)  Committed proerythroblast,normoblast,and reticulocyte 
A)  Normoblast,reticulocyte,and basophilic erythroblast 
B)  Basophilic erythroblast,normoblast,and reticulocyte 
C)  Normoblast,committed proerythroblast,and reticulocyte 
D)  Committed proerythroblast,normoblast,and reticulocyte

Question 19

Once activated,the clotting cascade is immediately controlled by counteracting anticoagulants.

Accepted Answer

A) True 
 B)False

Question 20

MATCHING
Match the descriptions with the corresponding terms.
-Endomitosis

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

Exam 25: Structure and Function of the Hematologic System

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

The surface of the endothelium produces plasma protease inhibitors to resist clot formation.

_____ are formed elements of the blood that are not cells,but disk-shaped cytoplasmic fragments essential for blood clotting.

Match the macrophage to its location. -Nervous system

Polycythemia at birth may indicate:

What is the role of plasmin in the clotting process?

In the clotting process,collagen provides a particularly strong stimuli to activate platelets.

Match the macrophage to its location. -Liver

What is the effect of low albumin in plasma?

During an infection,lymph nodes enlarge and become tender because:

Where does fetal hematopoiesis occur?

Match the macrophage to its location. -Skin

_____ are blood cells that differentiate into macrophages.

Removing the stomach with its parietal cells would prevent the absorption of an essential nutrient necessary to prevent which type of anemia?

Where is iron absorbed?

What is the life span of an erythrocyte?

Which nutrients are necessary for the synthesis of DNA and maturation of erythrocytes?

Which of the following shows a correct sequence in the development of erythrocytes?

Once activated,the clotting cascade is immediately controlled by counteracting anticoagulants.

MATCHING Match the descriptions with the corresponding terms. -Endomitosis

Cellular Biology

Altered Cellular and Tissue Biology

The Cellular Environment

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Innate Immunity Including Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation Including Hypersensitivies

Infection Including Hivaids

Stress and Disease

Biology of Cancer

Tumor Invasion and Metastasis

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Concepts of Neurologic Dysfunction

Disorders of Neurologic Function

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 Reproductive Systems

Sexually Transmitted Infections

Alterations of Erythrocyte Function

Alterations in 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

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

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Pulmonary Function in Children

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