Question 1

Extensions from megakaryocytes that extend through blood vessel walls in red marrow are sliced off from the cells by the force of blood flow. These extensions are

Accepted Answer

A)  reticulocytes. 
B)  promegakaryocytes. 
C)  myeloid stem cells. 
D)  late erythroblasts. 
E)  proplatelets. 
A)  reticulocytes. 
B)  promegakaryocytes. 
C)  myeloid stem cells. 
D)  late erythroblasts. 
E)  proplatelets.

Question 2

Congenital hemolytic anemia is

Accepted Answer

A)  when destruction of erythrocytes is more rapid than normal. 
B)  when there is an inherited anemia associated with a defect in iron uptake. 
C)  caused by a failure of the body to absorb Vitamin B12. 
D)  characterized by a large number of immature, nucleated cells. 
E)  characterized by significantly decreased formation of erythrocytes and hemoglobin due to defective red bone marrow. 
A)  when destruction of erythrocytes is more rapid than normal. 
B)  when there is an inherited anemia associated with a defect in iron uptake. 
C)  caused by a failure of the body to absorb Vitamin B12. 
D)  characterized by a large number of immature, nucleated cells. 
E)  characterized by significantly decreased formation of erythrocytes and hemoglobin due to defective red bone marrow.

Question 3

Macrophage colony-stimulating factor stimulates the production of

Accepted Answer

A)  granulocytes from their progenitors. 
B)  erythrocytes from myeloid stem cells. 
C)  megakaryocytes and platelets. 
D)  monocytes from monoblasts. 
E)  erythrocyte progenitor cells. 
A)  granulocytes from their progenitors. 
B)  erythrocytes from myeloid stem cells. 
C)  megakaryocytes and platelets. 
D)  monocytes from monoblasts. 
E)  erythrocyte progenitor cells.

Question 4

A comparison of the clinical hematocrit and true hematocrit would indicate that

Accepted Answer

A)  the clinical hematocrit is much larger. 
B)  the true hematocrit is much larger. 
C)  their values are very similar. 
A)  the clinical hematocrit is much larger. 
B)  the true hematocrit is much larger. 
C)  their values are very similar.

Question 5

When viewing a centrifuged blood sample, the erythrocytes will be on the top.

Accepted Answer

A) True 
 B)False

Question 6

One of the unhealthy effects of blood doping is to

Accepted Answer

A)  increase the viscosity of the blood. 
B)  decrease the blood pressure in the arteries. 
C)  decrease the oxygen carrying capacity of the blood. 
D)  increase the carbon dioxide carrying capacity of the blood. 
E)  increase the oxygen carrying capacity of the blood. 
A)  increase the viscosity of the blood. 
B)  decrease the blood pressure in the arteries. 
C)  decrease the oxygen carrying capacity of the blood. 
D)  increase the carbon dioxide carrying capacity of the blood. 
E)  increase the oxygen carrying capacity of the blood.

Question 7

T-lymphocytes are a category of

Accepted Answer

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

Question 8

In many of the elderly, leukocytes appear to be

Accepted Answer

A)  decreased in number and less efficient. 
B)  decreased in number but more efficient. 
C)  increased in number but more efficient. 
D)  increased in number and more efficient. 
A)  decreased in number and less efficient. 
B)  decreased in number but more efficient. 
C)  increased in number but more efficient. 
D)  increased in number and more efficient.

Question 9

An individual's hematocrit would vary with

Accepted Answer

A)  age. 
B)  sex. 
C)  altitude. 
D)  All of the choices are correct. 
A)  age. 
B)  sex. 
C)  altitude. 
D)  All of the choices are correct.

Question 10

Erythrocytes exhibit a limited lifespan due to their inability to synthesize the proteins necessary to repair themselves.

Accepted Answer

A) True 
 B)False

Question 11

Which term best describes the function of blood when considering the presence of leukocytes and antibodies?

Accepted Answer

A)  Regulation 
B)  Prevention 
C)  Protection 
D)  Transportation 
A)  Regulation 
B)  Prevention 
C)  Protection 
D)  Transportation

Question 12

Which are characteristics of type O blood?
A: Has anti-A antibodies
B: Has anti-B antibodies
C: Has surface antigen O on its erythrocytes
D: Has surface antigen A on its erythrocytes
E: Has neither surface antigen A nor B on its erythrocytes

Accepted Answer

A)  a, b, c 
B)  a, b, e 
C)  b, c, e 
D)  b, c, d 
E)  c 
A)  a, b, c 
B)  a, b, e 
C)  b, c, e 
D)  b, c, d 
E)  c

Exam 18: Cardiovascular System: Blood

Extensions from megakaryocytes that extend through blood vessel walls in red marrow are sliced off from the cells by the force of blood flow. These extensions are

Congenital hemolytic anemia is

Macrophage colony-stimulating factor stimulates the production of

A comparison of the clinical hematocrit and true hematocrit would indicate that

When viewing a centrifuged blood sample, the erythrocytes will be on the top.

One of the unhealthy effects of blood doping is to

T-lymphocytes are a category of

In many of the elderly, leukocytes appear to be

An individual's hematocrit would vary with

Erythrocytes exhibit a limited lifespan due to their inability to synthesize the proteins necessary to repair themselves.

Which term best describes the function of blood when considering the presence of leukocytes and antibodies?

Which are characteristics of type O blood? A: Has anti-A antibodies B: Has anti-B antibodies C: Has surface antigen O on its erythrocytes D: Has surface antigen A on its erythrocytes E: Has neither surface antigen A nor B on its erythrocytes

The Sciences of Anatomy and Physiology

Atoms, Ions, and Molecules

Energy, Chemical Reactions, and Cellular Respiration

Biology of the Cell

Tissue Organization

Integumentary System

Skeletal System: Bone Structure and Function

Skeletal System: Axial and Appendicular Skeleton

Skeletal System: Articulations

Muscle Tissue

Muscular System: Axial and Appendicular Muscles

Nervous System: Nervous Tissue

Nervous System: Brain and Cranial Nerves

Nervous System: Spinal Cord and Spinal Nerves

Nervous System: Autonomic Nervous System

Nervous System: Senses

Endocrine System

Cardiovascular System: Heart

Cardiovascular System: Vessels and Circulation

Lymphatic System

Immune System and the Bodys Defense

Respiratory System

Urinary System

Fluid and Electrolytes

Digestive System

Nutrition and Metabolism

Reproductive System

Development, Pregnancy, and Heredity

Filters