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ATI LPN · Medical Surgical Nursing · Questions About the Cardiovascular System

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The myocardium would be the thickest in the

A. left atrium

B. left ventricle

C. right atrium

D. right ventricle

Correct Answer: left ventricle

Question 2 of 5

The opening between the two atria in the fetus is the

A. ductus venosus

B. ductus arteriosus

C. foramen ovale

D. circle of Willis

Correct Answer: foramen ovale

Question 3 of 5

The upper chambers of the heart

A. Ventricles

B. Atria

C. Auricles

D. Trabeculae carneae

Correct Answer: Atria

Question 4 of 5

Which of the following would lead to a decreased heart rate?

A. Increased norepinephrine release

B. Increased thyroid hormone release

C. Increased potassium levels in plasma

D. Increased calcium levels in plasma

Correct Answer: Increased potassium levels in plasma

Question 5 of 5

Which of the following organs is not essential for life?

A. The liver

B. The pancreas

C. The heart

D. The spleen

Correct Answer: The spleen

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