ATI LPN
Cardiovascular Disease NCLEX Questions Questions
Question 1 of 5
During ventricular systole, the atria are______, the ventricles are_______, the AV valves are______ and the SL valves are_____.
Correct Answer: C
Rationale: During ventricular systole, the atria relax (diastole) while the ventricles contract. The increased pressure in the ventricles causes the atrioventricular (AV) valves to close and the semilunar (SL) valves to open, allowing blood to be ejected into the arteries.
Question 2 of 5
List the sections of the aorta beginning with the section that leaves the heart.
Correct Answer: B
Rationale: The aorta begins with the ascending aorta, followed by the aortic arch, then the descending aorta.
Question 3 of 5
Identify the groove found on the surface of the heart and marks the boundary between the right and left ventricles.
Correct Answer: B
Rationale: The anterior interventricular sulcus separates the right and left ventricles on the heart's front.
Question 4 of 5
Which part of the brain contains the cardiovascular center that regulates heart rate?
Correct Answer: C
Rationale: The medulla oblongata houses the cardiovascular center, which controls autonomic functions such as heart rate and blood pressure regulation.
Question 5 of 5
Precapillary sphincters increase the flow of blood through a tissue when they relax.
Correct Answer: A
Rationale: Relaxation of precapillary sphincters allows more blood into capillaries, increasing tissue perfusion.