ATI LPN
Questions About the Cardiovascular System Questions
Question 1 of 5
Identify the hormone(s) that will decrease blood volume and thus blood pressure.
Correct Answer: C
Rationale: ANH (atrial natriuretic hormone) promotes sodium and water excretion, reducing blood volume and pressure. ADH and aldosterone increase blood volume.
Question 2 of 5
The volume of blood ejected from the left ventricle into the aorta each minute is called the
Correct Answer: A
Rationale: Cardiac output is the total volume of blood pumped by the left ventricle per minute and is a key measure of heart performance.
Question 3 of 5
Blockage of the hepatic portal vein can cause an increase in capillary pressure in other veins of the abdomen, leading to abdominal bloating called ascites.
Correct Answer: A
Rationale: Hepatic portal vein blockage increases pressure in abdominal veins, causing fluid leakage into the abdomen (ascites).
Question 4 of 5
The thickest layer of tissue in the heart wall is the:
Correct Answer: C
Rationale: The myocardium, the muscular layer, is the thickest part of the heart wall for pumping.
Question 5 of 5
Which of the following is not true of the pulmonary artery?
Correct Answer: B
Rationale: The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs, not from the left ventricle.