In which of these vessels is the largest total cross-sectional area found
A)aorta
B)arterioles
C)capillaries
D)veins

Question

Quizplus · Accepted Answer

The largest total cross-sectional area is found in the capillaries. This is because, although each capillary is very small, there are millions of them in the body, which collectively provide a vast surface area for exchange of gases, nutrients, and waste products between blood and tissues.

In Which of These Vessels Is the Largest Total Cross-Sectional