ATI RN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
The muscular layer of the blood vessel wall is the
Correct Answer: B
Rationale: The tunica media (B) is the muscular layer, containing smooth muscle for vasoconstriction/dilation. Tunica externa/adventitia (A, C) is connective tissue, tunica interna (D) is endothelium.
Question 2 of 5
Two of the more common pulse points are the:
Correct Answer: A
Rationale: Common pulse points are the carotid (neck) and radial (wrist) arteries (A). Ulnar (B, D) is less common, and jugular (C) is a vein, not an artery.
Question 3 of 5
Blood from the stomach and intestines is transported to the liver by the:
Correct Answer: C
Rationale: The hepatic portal vein (C) carries nutrient-rich, oxygen-poor blood from the GI tract to the liver. Hepatic artery (B) supplies oxygen, aorta (A) is systemic, renal (D) is kidneys.
Question 4 of 5
Diaphragm is supplied by arteries:
Correct Answer: B
Rationale: The diaphragm is supplied by phrenic arteries (B) from the aorta. Coronary (A) supplies the heart, renal (C) the kidneys, and vasa vasorum (D) vessel walls.
Question 5 of 5
Arteries are:
Correct Answer: B
Rationale: Arteries (B) have thick, elastic walls to handle high pressure (~100 mmHg). Veins are thin-walled with low pressure (A, D incorrect), and C contradicts arterial structure.