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ATI RN · ATI Medical Surgical · Cardiovascular System Practice Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The element in hemoglobin that allows oxygen to be transported is:

A. sodium

B. zinc

C. iron

D. copper

Correct Answer: iron

Question 2 of 5

Thickest layer in heart is:

A. Epicardium

B. Endocardium

C. Pericardium

D. Myocardium

Correct Answer: Myocardium

Question 3 of 5

Identify the true statement:

A. oxygen and nutrients leave the blood of capillaries at their venular ends, while wastes enter the blood at the arteriolar ends

B. oxygen and nutrients leave the blood of capillaries at their arteriolar ends, while wastes enter the blood at the venular ends

C. the density of capillaries within a tissue is inversely proportional to the tissue's rate of metabolism

D. the pattern of capillary arrangement is basically uniform throughout the body

Correct Answer: oxygen and nutrients leave the blood of capillaries at their arteriolar ends, while wastes enter the blood at the venular ends

Question 4 of 5

A person with no antigens on the red blood cell would have which blood type?

A. Type A

B. Type B

C. Type AB

D. Type O

Correct Answer: Type O

Question 5 of 5

The outermost of the three layers of the heart is the:

A. epicardium

B. supracardium

C. pericardium

D. endocardium

Correct Answer: epicardium

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