Medical Quiz

Circulation and Excretion Quiz

Why do capillary beds have such low pressure?

A. The don’t, they have very high blood pressure to force the diffusion of oxygen and nutrients into cells.

B. Fluid loss from arteries is high enought that pressure drops by the time blood reaches capillaries.

C. The total cross-section diameter of the arterial circulation increases with progression from the artery to arteriole to capillary,leading to reduced blood pressure.

Select your answer:


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Other quiz:

Nutrition › View

How does food provide energy?

A. Food contains oxygen which cells change into energy.

B. Food contains fiber which breaks down into energy.

C. Food contains water which is used to store energy.

D. Food contains sugar which is converted into energy through cellular respiration.

Uses of Radioactive Radiation › View

Suggest way that a scientist can protect themselves against exposure when handling radioactive sources.

A. Storing sources in a lead–lined box using tongs

B. Goggles and gloves

C. Tie hair back