ATI RN
Cardiovascular System Anatomy Questions and Answers Questions
Question 1 of 5
The path of systemic circulation begins at the:
Correct Answer: B
Rationale: Systemic circulation begins at the left ventricle (B), pumping oxygenated blood into the aorta. Left atrium (A) fills it, right side (C, D) is pulmonary circulation.
Question 2 of 5
The longest vein in the human body is:
Correct Answer: C
Rationale: The long saphenous vein (C), from foot to thigh, is the longest (~70-100 cm). Inferior vena cava (A) is shorter (~20 cm), subclavian (B) and jugular (D) are smaller.
Question 3 of 5
Hepatic portal system originates from:
Correct Answer: D
Rationale: The hepatic portal system originates from the gut (D, intestines/stomach), carrying nutrient-rich blood to the liver. Liver (A) is the destination, kidney (B) is unrelated, and capillaries (C) are too general.
Question 4 of 5
Closure of the aortic valve occurs before the following event:
Correct Answer: B
Rationale: Aortic valve closure (S₂) marks the start of isovolumetric relaxation (B), when ventricles relax but valves are closed. A is systole start, C and D are vague.
Question 5 of 5
In determining blood pressure by auscultatory method the first sound indicates:
Correct Answer: C
Rationale: The first Korotkoff sound (C) marks systolic pressure (~120 mmHg) as the cuff pressure drops below arterial peak. A is last sound, B and D are incorrect.