ATI LPN
Cardiovascular MCQ Questions Questions
Question 1 of 5
If you stand up too quickly and blood pressure drops, baroreceptors in the carotid arteries will signal the cardioregulatory center to send
Correct Answer: D
Rationale: When blood pressure drops, baroreceptors signal the cardio regulatory center to activate the sympathetic nervous system, increasing heart rate to restore blood pressure.
Question 2 of 5
What vessels deliver oxygen rich blood to the legs?
Correct Answer: A
Rationale: The external iliac arteries supply oxygenated blood to the legs.
Question 3 of 5
Contraction of the ventricles of the heart leads to blood moving directly
Correct Answer: A
Rationale: During ventricular contraction (systole), blood is ejected out of the heart into arteries. The atrioventricular valves close to prevent backflow into the atria.
Question 4 of 5
What is the function of the foramen ovale during fetal life?
Correct Answer: A
Rationale: The foramen ovale allows oxygenated blood from the placenta to bypass the non-functional fetal lungs by flowing directly from the right atrium to the left atrium.
Question 5 of 5
The ductus arteriosus allows fetal blood to bypass the nonfunctioning fetal liver.
Correct Answer: B
Rationale: The ductus arteriosus connects the pulmonary artery to the aorta, bypassing the nonfunctional fetal lungs.