What happens to the speed of blood as it passes through the capillaries?
A) It decreases greatly.
B) It increases slightly.
C) It decreases slightly.
D) It increases greatly.
E) It depends on the location of the capillaries.

Question

Quizplus · Accepted Answer

The speed of blood decreases greatly as it passes through the capillaries due to the vast increase in total cross-sectional area compared to the arteries and arterioles, allowing for efficient exchange of nutrients, gases, and wastes between blood and tissues.

What Happens to the Speed of Blood as It Passes