Which of the Following Factors Is Most Important in Matching

question 162

Multiple Choice

Which of the following factors is most important in matching the blood flow through a specific tissue with the metabolic needs of that tissue?

• A) Sympathetically induced vasoconstriction of the arteries supplying a tissue forces more blood to flow into the tissue.
• B) Parasympathetically induced vasodilation of the capillaries within a tissue allows more blood to flow into the tissue.
• C) Local changes within a tissue resulting from increased metabolic activity can produce local arteriolar vasodilation to allow more blood to flow into the tissue.
• D) Widespread venous vasoconstriction allows blood to dam up at the tissue level.

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