What is the most important factor that increases blood flow through a specific tissue to meet the tissues needs?

Question

Quizplus · Accepted Answer

Cellular products cause local vasodilation, which is the most important factor that increases blood flow through a specific tissue to meet the tissue's needs. This is mediated by substances such as nitric oxide, adenosine, and prostaglandins, which are released in response to factors such as hypoxia, inflammation, and exercise. While sympathetic-induced vasoconstriction and parasympathetic-induced vasodilation can have effects on blood flow, they are not as important as local cellular products in regulating blood flow to a specific tissue. Widespread venous vasoconstriction would actually decrease blood flow to a specific tissue, rather than increasing it.

What Is the Most Important Factor That Increases Blood Flow