Which of the following statements describes the significance of blood pressure changes as blood reaches the capillary beds?
A. Blood pressure drops as it reaches the capillary beds because high pressure would rupture them.
B. Blood pressure increases as it reaches the capillary beds because capillaries need a higher blood pressure for filtration activities.
C. Blood pressure does not change as blood flows from arteries into capillaries.
D. Blood pressure drops as it reaches the capillary beds because capillaries depend on the lower pressure to prevent fluid exchange between the capillaries and interstitial space.
Answer: A. Blood pressure drops as it reaches the capillary beds because high pressure would rupture them.
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