ATI LPN
Cardiovascular System Questions Questions
Question 1 of 5
In response to a decrease in blood pressure, heart rate will_____ and the arterioles will______.
Correct Answer: D
Rationale: In response to decreased blood pressure, the cardiovascular system increases heart rate and constricts arterioles to raise blood pressure.
Question 2 of 5
Which of the following type of muscle contains the largest number of mitochondria per cell?
Correct Answer: C
Rationale: Cardiac muscle cells have the highest mitochondrial density among muscle types, reflecting their high energy demands and constant activity.
Question 3 of 5
A corrective cardiac procedure in which a large piece of a patient's own latissimus dorsi muscle is wrapped around the heart and stimulated by an implanted pacemaker to assist the pumping action of a damaged heart.
Correct Answer: D
Rationale: Cardiomyoplasty is the described procedure; the others are conditions, not surgical interventions.
Question 4 of 5
Both the renal and suprarenal arteries supply the kidney with blood
Correct Answer: B
Rationale: The renal artery supplies the kidney; the suprarenal artery supplies the adrenal glands.
Question 5 of 5
Which of the following vessels carries blood from the lungs to the heart?
Correct Answer: C
Rationale: The pulmonary vein carries oxygenated blood from the lungs to the left atrium.