Write an essay explaining why, for example, amino acids leave the blood through the arterial end, and organic wastes enter it via the venous end.

A capillary bed  has an arterial and venous end. Exchanges of nutrients, gases, and wastes between blood and interstitial space in opposite directions occur specifically at these so-called ends. Write an essay explaining why, for example, amino acids leave the blood through the arterial end, and organic wastes enter it via the venous end. (Below … Read more