Question 1

Platelets

Accepted Answer

A)  convert prothrombin to thrombin 
B)  form the meshwork upon which the erythrocytes become trapped to produce a clot 
C)  adhere and aggregate when they contact exposed collagen in the walls of a broken blood vessel 
D)  release fibrinogen once a platelet plug is formed 
E)  none of these 
A)  convert prothrombin to thrombin 
B)  form the meshwork upon which the erythrocytes become trapped to produce a clot 
C)  adhere and aggregate when they contact exposed collagen in the walls of a broken blood vessel 
D)  release fibrinogen once a platelet plug is formed 
E)  none of these

Question 2

If 24 packed volume units of cells are separated from 36 volume units of plasma from a blood sample, the hematocrit is ____ percent.

Accepted Answer

A)  24 
B)  36 
C)  40 
D)  48 
E)  67 
A)  24 
B)  36 
C)  40 
D)  48 
E)  67

Question 3

Plasma proteins are not normally used as metabolic fuels.

Accepted Answer

A) True 
 B)False

Question 4

The extrinsic clotting pathway

Accepted Answer

A)  is initiated by platelet factor 
B)  is primarily responsible for clotting in tissues 
C)  has more steps than the intrinsic pathway 
D)  is set off when Hageman factor comes into contact with collagen in an injured vessel 
E)  none of these 
A)  is initiated by platelet factor 
B)  is primarily responsible for clotting in tissues 
C)  has more steps than the intrinsic pathway 
D)  is set off when Hageman factor comes into contact with collagen in an injured vessel 
E)  none of these

Question 5

Complete each of the following statments.
The precursor for plasmin is ____________________, which is formed in the ____________________.

Accepted Answer

The answer of Complete each of the following statments.
The precursor...

Question 6

Use this figure to answer the corresponding questions.
Which numbers identify the polymorphonuclear cells?

Accepted Answer

The answer of Use this figure to answer the corresponding...

Question 7

Prostacyclin

Accepted Answer

A)  activates the clotting cascade 
B)  induces vasoconstriction of an injured vessel 
C)  inhibits platelet aggregation 
D)  is released by aggregated platelets 
E)  dissolves the clot 
A)  activates the clotting cascade 
B)  induces vasoconstriction of an injured vessel 
C)  inhibits platelet aggregation 
D)  is released by aggregated platelets 
E)  dissolves the clot

Question 8

A thrombus is a clot that is traveling in the blood vessel.

Accepted Answer

A) True 
 B)False

Question 9

The least abundant type of polymorphonuclear components in the blood is

Accepted Answer

A)  macrophages 
B)  eosinophils 
C)  basophils 
D)  lymphocytes 
E)  thrombocytes 
A)  macrophages 
B)  eosinophils 
C)  basophils 
D)  lymphocytes 
E)  thrombocytes

Question 10

Platelets

Accepted Answer

A)  are small cell fragments derived from large megakaryocytes in the bone marrow 
B)  lack nuclei 
C)  contain high concentrations of actin and myosin, which enable them to contract 
D)  all of these 
E)  are small cell fragments derived from large megakaryocytes in the bone marrow and contain high concentrations of actin and myosin, which enable them to contract 
A)  are small cell fragments derived from large megakaryocytes in the bone marrow 
B)  lack nuclei 
C)  contain high concentrations of actin and myosin, which enable them to contract 
D)  all of these 
E)  are small cell fragments derived from large megakaryocytes in the bone marrow and contain high concentrations of actin and myosin, which enable them to contract

Question 11

Erythropoiesis

Accepted Answer

A)  is accomplished in the bone marrow upon stimulation by erythropoietin 
B)  is accomplished in the kidneys in response to reduced O2 delivery to the kidneys 
C)  refers to increased RBC count 
D)  refers to RBC destruction 
E)  is accomplished in the bone marrow upon stimulation by erythropoietin and refers to increased RBC count 
A)  is accomplished in the bone marrow upon stimulation by erythropoietin 
B)  is accomplished in the kidneys in response to reduced O2 delivery to the kidneys 
C)  refers to increased RBC count 
D)  refers to RBC destruction 
E)  is accomplished in the bone marrow upon stimulation by erythropoietin and refers to increased RBC count

Question 12

Clotting potential decreases with age.

Accepted Answer

A) True 
 B)False

Question 13

Individuals who have type-O blood

Accepted Answer

A)  do not have any anti-A antibodies 
B)  have anti-A antigens on their red blood cells 
C)  cannot donate blood to type A individuals 
D)  can receive type AB blood 
E)  none of these 
A)  do not have any anti-A antibodies 
B)  have anti-A antigens on their red blood cells 
C)  cannot donate blood to type A individuals 
D)  can receive type AB blood 
E)  none of these

Question 14

Specific hormones secreted from erythrocytes direct the differentiation and proliferation of the various types of white blood cells.

Accepted Answer

A) True 
 B)False

Question 15

In the blood, the gamma globulin-producing leukocytes are more numerous than the leukocytes that differentiate to become macrophages.

Accepted Answer

A) True 
 B)False

Question 16

Reticulocytes are produced from erythrocytes.

Accepted Answer

A) True 
 B)False

Question 17

____ leave the blood after circulating for only a day or two and become the large-tissue phagocytes known as macrophages.

Accepted Answer

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

Question 18

Tissue thromboplastin

Accepted Answer

A)  is released from traumatized tissue and triggers the extrinsic clotting pathway 
B)  converts fibrinogen to fibrin 
C)  forms the meshwork of the clot 
D)  activates factor XII (Hageman factor) 
E)  all of these 
A)  is released from traumatized tissue and triggers the extrinsic clotting pathway 
B)  converts fibrinogen to fibrin 
C)  forms the meshwork of the clot 
D)  activates factor XII (Hageman factor) 
E)  all of these

Question 19

Neutrophils

Accepted Answer

A)  are the most abundant type of white blood cell 
B)  attach to a parasitic worm and secrete substances that kill it 
C)  are stimulated to replicate and be released from the bone marrow in response to granulocyte colony-stimulating factor 
D)  are similar structurally to mast cells 
E)  are the most abundant type of white blood cell and are stimulated to replicate and be released from the bone marrow in response to granulocyte colony-stimulating factor 
A)  are the most abundant type of white blood cell 
B)  attach to a parasitic worm and secrete substances that kill it 
C)  are stimulated to replicate and be released from the bone marrow in response to granulocyte colony-stimulating factor 
D)  are similar structurally to mast cells 
E)  are the most abundant type of white blood cell and are stimulated to replicate and be released from the bone marrow in response to granulocyte colony-stimulating factor

Question 20

Which statement is incorrect?

Accepted Answer

A)  Platelets are produced in the bone marrow. 
B)  Platelets form the meshwork of a blood clot upon which the other cellular elements become entrapped. 
C)  Platelets form a plug when they adhere to the exposed collagen of a damaged vessel. 
D)  Aggregated platelets release serotonin, epinephrine, and thromboxane A2. 
E)  Aggregated platelets release ADP, which causes the surface of nearby circulating platelets to become sticky so that they also adhere to the enlarging platelet plug. 
A)  Platelets are produced in the bone marrow. 
B)  Platelets form the meshwork of a blood clot upon which the other cellular elements become entrapped. 
C)  Platelets form a plug when they adhere to the exposed collagen of a damaged vessel. 
D)  Aggregated platelets release serotonin, epinephrine, and thromboxane A2. 
E)  Aggregated platelets release ADP, which causes the surface of nearby circulating platelets to become sticky so that they also adhere to the enlarging platelet plug.

Exam 11: The Blood

Platelets

If 24 packed volume units of cells are separated from 36 volume units of plasma from a blood sample, the hematocrit is ____ percent.

Plasma proteins are not normally used as metabolic fuels.

The extrinsic clotting pathway

Complete each of the following statments. The precursor for plasmin is ____________________, which is formed in the ____________________.

Use this figure to answer the corresponding questions. Which numbers identify the polymorphonuclear cells?

Prostacyclin

A thrombus is a clot that is traveling in the blood vessel.

The least abundant type of polymorphonuclear components in the blood is

Platelets

Erythropoiesis

Clotting potential decreases with age.

Individuals who have type-O blood

Specific hormones secreted from erythrocytes direct the differentiation and proliferation of the various types of white blood cells.

In the blood, the gamma globulin-producing leukocytes are more numerous than the leukocytes that differentiate to become macrophages.

Reticulocytes are produced from erythrocytes.

____ leave the blood after circulating for only a day or two and become the large-tissue phagocytes known as macrophages.

Tissue thromboplastin

Neutrophils

Which statement is incorrect?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

Complete each of the following statments. The precursor for plasmin is , which is formed in the .