Blood Is Pumped at High Pressures in Arteries from the Heart

question 37

Multiple Choice

Blood is pumped at high pressures in arteries from the heart to ensure that all parts of the body receive adequate blood flow.Capillary beds,however,would hemorrhage under direct arterial pressures.How does the design of the circulation network contribute to reducing blood pressure to avoid this scenario?

• A)Blood flow through the capillaries is essentially frictionless,and this reduces the amount of pressure on their walls.
• B)The total cross-sectional diameter of the arterial circulation increases with progression from artery to arteriole to capillary,leading to a reduced blood pressure.
• C)Fluid loss from the arteries is high enough that pressure drops off significantly by the time blood reaches the capillaries.
• D)All of the above answers apply.

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Definitions:

Pure Nondiscriminating Monopolist

A monopolist who charges all consumers the same price for a good or service, regardless of the quantity purchased or consumer preferences.

Pure Competitor

A firm in a purely competitive market that sells products identical to those of other firms, making it a price taker with no control over market price.

Pure Monopoly

A market structure where a single seller controls the entire supply of a product or service, with no close substitutes, leading to significant market power.

Profit-Maximizing Price

The price at which a company can sell its product or service to achieve the highest possible profit.