MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO 2025 EXAM
MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO
2025 EXAM 2 LATEST VERSIONS ACTUAL EXAM TEST
BANK 2025 COMPLETE 250 QUESTIONS AND
ANSWERS WITH CORRECT DETAILED RATIONALES|
GRADED A+ advanced Pathophysiology
MULTIPLE CHOICE
1. Which statement does not accurately describe the pericardium?
a. The pericardium is a double-walled membranous sac that encloses the heart.
b. It is made up of connective tissue and a surface layer of squamous cells.
c. The pericardium protects the heart against infection and inflammation from
the lungs and pleural space.
d. It contains pain and mechanoreceptors that can elicit reflex changes in
blood pressure and heart rate.
ANS: B
The pericardium is made up of a surface layer of mesothelium over a thin layer of
connective tissue. The remaining options accurately describe the pericardium.
PTS: 1 REF: Page 1085
A BOMB 1
, MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO 2025 EXAM
2. Which cardiac chamber has the thinnest wall and why?
a. The right and left atria; they are low-pressure chambers that serve as storage
units and conduits for blood.
b. The right and left atria; they are not directly involved in the preload, contractility,
or afterload of the heart.
c. The left ventricle; the mean pressure of blood coming into this ventricle is from
the lung, which has a low pressure.
d. The right ventricle; it pumps bNl oUoRdS Ii Nn tGoTtBh.eC Op uMl m o n a r y capillaries, which have a
lower pressure compared with the systemic circulation.
ANS: A
The two atria have the thinnest walls because they are low-pressure chambers that serve as
storage units and conduits for blood that is emptied into the ventricles. This selection is the
only option that correctly identifies which heart chambers have the thinnest walls and why
that helps cardiac function.
PTS: 1 REF: Page 1086
3. Which chamber of the heart endures the highest pressures?
a. Right atrium c. Left ventricle
b. Left atrium d. Right ventricle
ANS: C
Pressure is greatest in the systemic circulation, driven by the left ventricle.
PTS: 1 REF: Page 1086
4. What is the process that ensures mitral and tricuspid valve closure after the ventricles
are filled with blood?
a. Chordae tendineae relax, which allows the valves to close.
b. Increased pressure in the ventricles pushes the valves to close.
c. Trabeculae carneae contract, which pulls the valves closed.
A BOMB 2
, MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO 2025 EXAM
d. Reduced pressure in the atria creates a negative pressure that pulls the
valves closed.
ANS: B
During ventricular relaxation, the two atrioventricular valves open and blood flows from
the higher pressure atria to the relaxed ventricles. With increasing ventricular pressure,
these valves close and prevent backflow into the atria as the ventricles contract. This
selection is the only option that correctly identifies the process that ensures closing of the
mitral and tricuspid valves.
PTS: 1 REF: Page 1088
5. Regarding the heart’s valves, what is a function of the papillary muscles?
a. The papillary muscles close the semilunar valve.
b. These muscles prevent backward expulsion of the atrioventricular valve.
c. They close the atrioventricular valve.
d. The papillary muscles open the semilunar valve.
ANS: B
The papillary muscles are extensions of the myocardium that pull the cusps together and
downward at the onset of ventricular contraction, thus preventing their backward
expulsion into the atria. This selection is the only option that correctly describes the
function of the papillary muscles.
PTS: 1 REF: Pages 1087-1088
6. During the cardiac cycle, why do the aortic and pulmonic valves close after the ventricles
relax? NURSINGTB.COM
a. Papillary muscles relax, which allows the valves to close.
b. Chordae tendineae contract, which pulls the valves closed.
c. Reduced pressure in the ventricles creates a negative pressure, which pulls
the valves closed.
d. Blood fills the cusps of the valves and causes the edges to merge, closing
the valves.
ANS: D
When the ventricles relax, blood fills the cusps and causes their free edges to meet in the
middle of the vessel, closing the valve and preventing any backflow. This selection is the
only option that accurately explains why the aortic and pulmonic valves close after the
ventricles contract.
PTS: 1 REF: Page 1088
7. Oxygenated blood flows through which vessel?
a. Superior vena cava c. Pulmonary artery
b. Pulmonary veins d. Coronary veins
A BOMB 3
, MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO 2025 EXAM
ANS: B
Only the four pulmonary veins, two from the right lung and two from the left lung, carry
oxygenated blood from the lungs to the left side of the heart.
PTS: 1 REF: Page 1088
A BOMB 4
MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO
2025 EXAM 2 LATEST VERSIONS ACTUAL EXAM TEST
BANK 2025 COMPLETE 250 QUESTIONS AND
ANSWERS WITH CORRECT DETAILED RATIONALES|
GRADED A+ advanced Pathophysiology
MULTIPLE CHOICE
1. Which statement does not accurately describe the pericardium?
a. The pericardium is a double-walled membranous sac that encloses the heart.
b. It is made up of connective tissue and a surface layer of squamous cells.
c. The pericardium protects the heart against infection and inflammation from
the lungs and pleural space.
d. It contains pain and mechanoreceptors that can elicit reflex changes in
blood pressure and heart rate.
ANS: B
The pericardium is made up of a surface layer of mesothelium over a thin layer of
connective tissue. The remaining options accurately describe the pericardium.
PTS: 1 REF: Page 1085
A BOMB 1
, MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO 2025 EXAM
2. Which cardiac chamber has the thinnest wall and why?
a. The right and left atria; they are low-pressure chambers that serve as storage
units and conduits for blood.
b. The right and left atria; they are not directly involved in the preload, contractility,
or afterload of the heart.
c. The left ventricle; the mean pressure of blood coming into this ventricle is from
the lung, which has a low pressure.
d. The right ventricle; it pumps bNl oUoRdS Ii Nn tGoTtBh.eC Op uMl m o n a r y capillaries, which have a
lower pressure compared with the systemic circulation.
ANS: A
The two atria have the thinnest walls because they are low-pressure chambers that serve as
storage units and conduits for blood that is emptied into the ventricles. This selection is the
only option that correctly identifies which heart chambers have the thinnest walls and why
that helps cardiac function.
PTS: 1 REF: Page 1086
3. Which chamber of the heart endures the highest pressures?
a. Right atrium c. Left ventricle
b. Left atrium d. Right ventricle
ANS: C
Pressure is greatest in the systemic circulation, driven by the left ventricle.
PTS: 1 REF: Page 1086
4. What is the process that ensures mitral and tricuspid valve closure after the ventricles
are filled with blood?
a. Chordae tendineae relax, which allows the valves to close.
b. Increased pressure in the ventricles pushes the valves to close.
c. Trabeculae carneae contract, which pulls the valves closed.
A BOMB 2
, MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO 2025 EXAM
d. Reduced pressure in the atria creates a negative pressure that pulls the
valves closed.
ANS: B
During ventricular relaxation, the two atrioventricular valves open and blood flows from
the higher pressure atria to the relaxed ventricles. With increasing ventricular pressure,
these valves close and prevent backflow into the atria as the ventricles contract. This
selection is the only option that correctly identifies the process that ensures closing of the
mitral and tricuspid valves.
PTS: 1 REF: Page 1088
5. Regarding the heart’s valves, what is a function of the papillary muscles?
a. The papillary muscles close the semilunar valve.
b. These muscles prevent backward expulsion of the atrioventricular valve.
c. They close the atrioventricular valve.
d. The papillary muscles open the semilunar valve.
ANS: B
The papillary muscles are extensions of the myocardium that pull the cusps together and
downward at the onset of ventricular contraction, thus preventing their backward
expulsion into the atria. This selection is the only option that correctly describes the
function of the papillary muscles.
PTS: 1 REF: Pages 1087-1088
6. During the cardiac cycle, why do the aortic and pulmonic valves close after the ventricles
relax? NURSINGTB.COM
a. Papillary muscles relax, which allows the valves to close.
b. Chordae tendineae contract, which pulls the valves closed.
c. Reduced pressure in the ventricles creates a negative pressure, which pulls
the valves closed.
d. Blood fills the cusps of the valves and causes the edges to merge, closing
the valves.
ANS: D
When the ventricles relax, blood fills the cusps and causes their free edges to meet in the
middle of the vessel, closing the valve and preventing any backflow. This selection is the
only option that accurately explains why the aortic and pulmonic valves close after the
ventricles contract.
PTS: 1 REF: Page 1088
7. Oxygenated blood flows through which vessel?
a. Superior vena cava c. Pulmonary artery
b. Pulmonary veins d. Coronary veins
A BOMB 3
, MARYVILLE UNIVERSITYNURS 611 EXAM 3 PATHO 2025 EXAM
ANS: B
Only the four pulmonary veins, two from the right lung and two from the left lung, carry
oxygenated blood from the lungs to the left side of the heart.
PTS: 1 REF: Page 1088
A BOMB 4
