7/29/25, 12:45 PM Graded Exam 1: Attempt review
Topic 3: Cardiovascular System: Blood Vessels and Circulation
Started on Tuesday, July 29, 2025, 1:31 PM
State Finished
Completed on Tuesday, July 29, 2025, 1:44 PM
Time taken 12 mins 59 secs
Grade 90.00 out of 125.00 (72%)
Question 1
What is the normal temperature of blood?
Correct
5.00 points out Select one:
of 5.00 a. ~39°C (102.2°F)
b. ~35°C (95°F)
c. ~38°C (101.3°F)
d. ~30°C (86°F)
Question 2
What is the phenomenon in which injured or infected cells emit chemical signals
Correct leukocytes to the site?
5.00 points out
of 5.00 Select one:
a. Agglutination
b. Chemotaxis
c. Phagocytosis
d. Hemolysis
Question 3
What is the role of factor XIII in blood clotting?
Correct
5.00 points out Select one:
of 5.00 a. Initiates the intrinsic pathway
b. Converts fibrinogen into fibrin
c. Stabilizes the fibrin clot
d. Activates factor X
Question 4
What is the primary function of GM-CSF (Granulocyte-Macrophage Colony-Stimu
Incorrect context of hemopoiesis?
0.00 points out
of 5.00 Select one:
a. Promoting platelet development
b. Enhancing the differentiation of myeloblasts into granulocytes and monoc
c. Stimulating red blood cell production
d. Regulating blood sugar levels
, 7/29/25, 12:45 PM Graded Exam 1: Attempt review
Question 5
What distinguishes polycythemia from anemia, and what are some complications associated with
Correct polycythemia vera?
5.00 points out
of 5.00 Select one:
a. A decreased RBC count characterizes Polycythemia, while polycythemia vera primarily affects
females, leading to joint pain.
b. Polycythemia involves an elevated RBC count, and polycythemia vera may result in
increased blood viscosity, elevated blood pressure, and heart-related difficulties, primarily
affecting elderly males.
c. Polycythemia is characterized by irregularly shaped erythrocytes, while polycythemia vera is
primarily observed in individuals with Crohn's disease.
d. Polycythemia involves vitamin deficiencies, while polycythemia vera leads to a yellowish tint
in the skin.
Question 6
What is the role of platelets in hemostasis, and how do they contribute to limiting blood loss after
Correct vessel damage?
5.00 points out
of 5.00 Select one:
a. Platelets only contribute to blood clot dissolution, preventing the formation of unwanted
clots.
b. Platelets have no role in hemostasis, and their main function is the transport of oxygen in the
blood.
c. Platelets are critical to hemostasis, and their activation triggers events that form a plug at
the injury site, preventing excessive bleeding.
d. Platelets play a role in promoting blood clot formation, and they secrete growth factors for
tissue growth and repair.
Question 7
What is the specialization of mesenchymal stem cells in the hierarchy of stem cells?
Correct
5.00 points out Select one:
of 5.00 a. Generation of muscle tissue
b. Differentiation into epithelium
c. Formation of blood cells
d. Development of connective tissues
Question 8
In the context of Rh incompatibility and Hemolytic Disease of the Newborn (HDN), what is the
Correct primary mechanism leading to fetal red blood cell agglutination and hemolysis?
5.00 points out
of 5.00 Select one:
a. Direct invasion of Rh-positive cells into the maternal bloodstream.
b. Maternal immune system recognition and destruction of Rh-negative cells in the fetus.
c. Transfer of anti-Rh antibodies from the mother to the baby.
d. Fusion of Rh-positive and Rh-negative cells within the fetal circulation.
Topic 3: Cardiovascular System: Blood Vessels and Circulation
Started on Tuesday, July 29, 2025, 1:31 PM
State Finished
Completed on Tuesday, July 29, 2025, 1:44 PM
Time taken 12 mins 59 secs
Grade 90.00 out of 125.00 (72%)
Question 1
What is the normal temperature of blood?
Correct
5.00 points out Select one:
of 5.00 a. ~39°C (102.2°F)
b. ~35°C (95°F)
c. ~38°C (101.3°F)
d. ~30°C (86°F)
Question 2
What is the phenomenon in which injured or infected cells emit chemical signals
Correct leukocytes to the site?
5.00 points out
of 5.00 Select one:
a. Agglutination
b. Chemotaxis
c. Phagocytosis
d. Hemolysis
Question 3
What is the role of factor XIII in blood clotting?
Correct
5.00 points out Select one:
of 5.00 a. Initiates the intrinsic pathway
b. Converts fibrinogen into fibrin
c. Stabilizes the fibrin clot
d. Activates factor X
Question 4
What is the primary function of GM-CSF (Granulocyte-Macrophage Colony-Stimu
Incorrect context of hemopoiesis?
0.00 points out
of 5.00 Select one:
a. Promoting platelet development
b. Enhancing the differentiation of myeloblasts into granulocytes and monoc
c. Stimulating red blood cell production
d. Regulating blood sugar levels
, 7/29/25, 12:45 PM Graded Exam 1: Attempt review
Question 5
What distinguishes polycythemia from anemia, and what are some complications associated with
Correct polycythemia vera?
5.00 points out
of 5.00 Select one:
a. A decreased RBC count characterizes Polycythemia, while polycythemia vera primarily affects
females, leading to joint pain.
b. Polycythemia involves an elevated RBC count, and polycythemia vera may result in
increased blood viscosity, elevated blood pressure, and heart-related difficulties, primarily
affecting elderly males.
c. Polycythemia is characterized by irregularly shaped erythrocytes, while polycythemia vera is
primarily observed in individuals with Crohn's disease.
d. Polycythemia involves vitamin deficiencies, while polycythemia vera leads to a yellowish tint
in the skin.
Question 6
What is the role of platelets in hemostasis, and how do they contribute to limiting blood loss after
Correct vessel damage?
5.00 points out
of 5.00 Select one:
a. Platelets only contribute to blood clot dissolution, preventing the formation of unwanted
clots.
b. Platelets have no role in hemostasis, and their main function is the transport of oxygen in the
blood.
c. Platelets are critical to hemostasis, and their activation triggers events that form a plug at
the injury site, preventing excessive bleeding.
d. Platelets play a role in promoting blood clot formation, and they secrete growth factors for
tissue growth and repair.
Question 7
What is the specialization of mesenchymal stem cells in the hierarchy of stem cells?
Correct
5.00 points out Select one:
of 5.00 a. Generation of muscle tissue
b. Differentiation into epithelium
c. Formation of blood cells
d. Development of connective tissues
Question 8
In the context of Rh incompatibility and Hemolytic Disease of the Newborn (HDN), what is the
Correct primary mechanism leading to fetal red blood cell agglutination and hemolysis?
5.00 points out
of 5.00 Select one:
a. Direct invasion of Rh-positive cells into the maternal bloodstream.
b. Maternal immune system recognition and destruction of Rh-negative cells in the fetus.
c. Transfer of anti-Rh antibodies from the mother to the baby.
d. Fusion of Rh-positive and Rh-negative cells within the fetal circulation.
