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.

Question 2

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.

Question 3

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.

Question 4

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.

Question 5

T-lymphocytes are a category of

Accepted Answer

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

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Question 8

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

Question 9

An individual's hematocrit would vary with

Accepted Answer

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

Question 10

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.

Question 11

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.

Question 12

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

Accepted Answer

A) True 
 B)False

Exam 18: Cardiovascular System: Blood

Macrophage colony-stimulating factor stimulates the production of

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

T-lymphocytes are a category of

Correct Answer
verified

An individual's hematocrit would vary with

Correct Answer
verified

Congenital hemolytic anemia is

Correct Answer
verified

In many of the elderly, leukocytes appear to be

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

One of the unhealthy effects of blood doping is to

Correct Answer
verified

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

Correct Answer
verified

Exam 18: Cardiovascular System: Blood

Macrophage colony-stimulating factor stimulates the production of

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

T-lymphocytes are a category of

Correct AnswerverifiedShow Answer

An individual's hematocrit would vary with

Correct AnswerverifiedShow Answer

Congenital hemolytic anemia is

Correct AnswerverifiedShow Answer

In many of the elderly, leukocytes appear to be

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

One of the unhealthy effects of blood doping is to

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified