Pathophysiology Exam 6 Complete
Questions and Verified Answers |
Graded A+
Which of the following actions causes the atrioventricular (AV) valves to close? -
✔✔Increased intraventricular pressure
When stroke volume decreases, which of the following could maintain cardiac
output? - ✔✔Increased heart rate
Which of the following describes the pericardial cavity? - ✔✔It is a potential
space containing a very small amount of serous fluid.
Which of the following factors greatly improves venous return to the heart
during strenuous exercise? - ✔✔Contraction and relaxation of skeletal muscle
The function of the baroreceptors is to: - ✔✔signal the cardiovascular control
center of changes in systemic blood pressure.
The normal delay in conduction through the AV node is essential for: -
✔✔completing ventricular filling.
Which of the following is a result of increased secretion of epinephrine? -
✔✔Increased heart rate and force of contraction
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, Which of the following causes increased heart rate? - ✔✔Stimulation of the
sympathetic nervous system
The event that causes the QRS wave on an electrocardiogram (ECG) tracing is: -
✔✔ventricular depolarization.
The cardiac reserve is: - ✔✔the ability of the heart to increase cardiac output
when needed.
The term preload refers to: - ✔✔volume of venous return.
The first arteries to branch off the aorta are the: - ✔✔coronary arteries.
Cardiac output refers to: - ✔✔the volume of blood ejected by a ventricle in one
minute.
Vasodilation in the skin and viscera results directly from: - ✔✔relaxation of
smooth muscle in the arterioles.
A partial obstruction in a coronary artery will likely cause: - ✔✔angina attacks.
Cigarette smoking is a risk factor in coronary artery disease because smoking: -
✔✔promotes platelet adhesion.
The term arteriosclerosis specifically refers to: - ✔✔degeneration with loss of
elasticity and obstruction in small arteries.
2|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
Questions and Verified Answers |
Graded A+
Which of the following actions causes the atrioventricular (AV) valves to close? -
✔✔Increased intraventricular pressure
When stroke volume decreases, which of the following could maintain cardiac
output? - ✔✔Increased heart rate
Which of the following describes the pericardial cavity? - ✔✔It is a potential
space containing a very small amount of serous fluid.
Which of the following factors greatly improves venous return to the heart
during strenuous exercise? - ✔✔Contraction and relaxation of skeletal muscle
The function of the baroreceptors is to: - ✔✔signal the cardiovascular control
center of changes in systemic blood pressure.
The normal delay in conduction through the AV node is essential for: -
✔✔completing ventricular filling.
Which of the following is a result of increased secretion of epinephrine? -
✔✔Increased heart rate and force of contraction
1|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
, Which of the following causes increased heart rate? - ✔✔Stimulation of the
sympathetic nervous system
The event that causes the QRS wave on an electrocardiogram (ECG) tracing is: -
✔✔ventricular depolarization.
The cardiac reserve is: - ✔✔the ability of the heart to increase cardiac output
when needed.
The term preload refers to: - ✔✔volume of venous return.
The first arteries to branch off the aorta are the: - ✔✔coronary arteries.
Cardiac output refers to: - ✔✔the volume of blood ejected by a ventricle in one
minute.
Vasodilation in the skin and viscera results directly from: - ✔✔relaxation of
smooth muscle in the arterioles.
A partial obstruction in a coronary artery will likely cause: - ✔✔angina attacks.
Cigarette smoking is a risk factor in coronary artery disease because smoking: -
✔✔promotes platelet adhesion.
The term arteriosclerosis specifically refers to: - ✔✔degeneration with loss of
elasticity and obstruction in small arteries.
2|Page
©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025.
