When the by-products of metabolism build up in the tissue spaces, the precapillary sphincters _________ causing blood flow to the tissue to _________.

Question

Quizplus · Accepted Answer

When the by-products of metabolism build up in the tissue spaces, it signals a need for increased oxygen and nutrient delivery to that area. The precapillary sphincters relax in response, which allows more blood to flow into the tissue, thereby increasing blood flow.

When the By-Products of Metabolism Build Up in the Tissue