List the sections of the aorta beginning with the section that leaves the heart.

Correct Answer: B

Rationale: The aorta begins with the ascending aorta, followed by the aortic arch, then the descending aorta.

Correct Answer: C

Rationale: The medulla oblongata houses the cardiovascular center, which controls autonomic functions such as heart rate and blood pressure regulation.

Correct Answer: A

Rationale: Relaxation of precapillary sphincters allows more blood into capillaries, increasing tissue perfusion.

Correct Answer: A

Rationale: The aortic valve is a semilunar valve, preventing backflow from the aorta.

Correct Answer: D

Rationale: Blood leaving the left ventricle passes through the aortic semilunar valve into the aorta.