Which of These Factors Is Most Important in Matching the Blood

question 242

Multiple Choice

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

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Trade Deficit

An economic measure of a negative balance of trade where a country's imports exceed its exports.

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The difference between a country’s total exports of goods and services and its total imports of them. Positive net exports indicate a trade surplus, while negative net exports indicate a trade deficit.

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