What is happening in a capillary in your big toe?

Question

Quizplus · Accepted Answer

Capillaries are the smallest blood vessels that are responsible for exchanging nutrients, oxygen, and waste products between the blood and tissues. In the capillaries of the big toe, oxygen is diffusing from the blood into the toe tissue while carbon dioxide is diffusing from the toe tissue into the blood. Additionally, nutrients such as glucose, amino acids, and fatty acids are also diffusing from the blood into the toe tissue. Therefore, option D ("All of these answers are correct") is the best choice.

What Is Happening in a Capillary in Your Big Toe