Which of the Following Statements About the Control of Circulation

Multiple Choice

Which of the following statements about the control of circulation in humans is false?

A) Sympathetic nerve input to skeletal muscle causes the blood vessels in the muscle to dilate.
B) Blood flow can be regulated by autonomic nerve signals emanating from cardiovascular control centers in the medulla of the brain.
C) Carotid artery chemoreceptors detect low O₂ levels in the blood and promote increased blood pressure.
D) Hormones such as angiotensin and vasopressin cause venules to constrict.
E) Autoregulatory mechanisms can cause constriction or dilation of arterioles.