Question

question 9 of 10
blood has traveled from the heart to the toes. which describes the next step of the circulation process?
a. the blood travels back to the heart in a vein.
b. the blood travels to the lungs to get oxygen.
c. the blood releases carbon dioxide on the way back to the heart.
d. the blood goes through the liver to be cleaned.

Explanation:

In the circulatory system, after blood delivers oxygen and nutrients (like to the toes), it returns to the heart. Veins are the blood vessels that carry de - oxygenated (in systemic circulation) blood back to the heart. Option B is part of pulmonary circulation (after blood is already back in the heart). Option C: Carbon dioxide is released in the lungs (not on the way back in a general sense). Option D: While the liver has a role in detoxification, it's not the immediate next step after blood has been to the toes in the basic circulatory pathway description.

Answer:

A. The blood travels back to the heart in a vein.