ATI RN
Cardiovascular System Questions Questions
Question 1 of 5
The common iliac artery is in which blood circuit?
Correct Answer: C
Rationale: The common iliac artery is part of systemic circulation (C), supplying the lower body. Pulmonary (A) is lungs, coronary (B) is heart, pelvic (D) isn’t a circuit.
Question 2 of 5
Least blood pressure is at:
Correct Answer: B
Rationale: The vena cava (B) has the lowest pressure (~0-5 mmHg) as blood returns to the heart. Veins (A, ~10 mmHg), capillaries (D, ~20 mmHg), and aorta (C, ~100 mmHg) have higher pressures.
Question 3 of 5
Stimulation of baroreceptor leads to:
Correct Answer: B
Rationale: Baroreceptor stimulation (e.g., high BP) triggers parasympathetic activation, lowering BP and heart rate (B). A and C increase BP, D is mixed.
Question 4 of 5
Effect on force of contraction of heart is:
Correct Answer: D
Rationale: Inotropic effect (D) alters contraction force (e.g., via calcium). Chronotropic (A) is rate, dromotropic (B) conduction, bathmotropic (C) excitability.
Question 5 of 5
Identify the groove found on the surface of the heart and marks the boundary between the right and left ventricles.
Correct Answer: B
Rationale: The anterior interventricular sulcus (B) marks the boundary between the right and left ventricles on the heart’s front. Coronary sulcus (A) separates atria from ventricles, posterior sulcus (C) is on the back, and coronary sinus (D) is a vein.