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ATI LPN · Anatomy and Physiology · Cardiovascular System Multiple Choice Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Many types of blood cells are produced in the:

A. liver

B. red bone marrow

C. spleen

D. pancreas

Expert Explanatory Rationale

Correct Answer: red bone marrow

Question 2 of 5

This substance dissolves blood clots.

A. Streptokinase

B. Phosphodiesterase

C. Plasmin

D. Vitamin K

Expert Explanatory Rationale

Correct Answer: Plasmin

Question 3 of 5

The hepatic portal system delivers blood from the digestive organs to the

A. liver

B. hypothalamus

C. spleen

D. left atrium

Expert Explanatory Rationale

Correct Answer: liver

Question 4 of 5

Under resting condition, the cardiac output is:

A. 2.5 L/min

B. 4.25 L/min

C. 5.25 L/min

D. 9.5 L/min

Expert Explanatory Rationale

Correct Answer: 5.25 L/min

Question 5 of 5

What is the formula for ventricular diastole duration (t_vd) in the cardiac cycle, given t_total = t_as + t_ad + t_vs + t_vd, where t_total is the total cycle time, t_as is atrial systole, t_ad is atrial diastole, and t_vs is ventricular systole?

A. (t_as + t_ad) - t_vs

B. t_total - t_vs

C. t_total - (t_as + t_vs)

D. t_total - (t_ad + t_vs)

Expert Explanatory Rationale

Correct Answer: t_total - (t_as + t_vs)

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