ATI LPN
Questions About the Cardiovascular System Questions
Question 1 of 5
What inhibits gene transcription for endothelin-1 secretion:
Correct Answer: A
Rationale: Nitric oxide inhibits gene transcription for endothelin-1 secretion through various signaling pathways.
Question 2 of 5
The expression 'cardiac cycle' refers to:
Correct Answer: D
Rationale: The cardiac cycle encompasses all the events associated with one complete heartbeat, including systole and diastole of both atria and ventricles.
Question 3 of 5
The visceral serous pericardium is also known as the:
Correct Answer: B
Rationale: The visceral serous pericardium is synonymous with the epicardium, the innermost layer of the pericardium.
Question 4 of 5
What ECG wave accompanies ventricular depolarization?
Correct Answer: B
Rationale: The QRS complex represents ventricular depolarization on an ECG.
Question 5 of 5
Which of the following is NOT true of artery structure and function?
Correct Answer: A
Rationale: Arteries carry blood away from the heart, while veins carry blood toward the heart.