Question

Assuming you inhale through your nose, list the pathway a molecule of oxygen would follow starting with inhalation and ending with diffusion to a muscle fiber. List all the structures the O2 molecule passes through in the respiratory and circulatory systems, including the types of blood vessels, as it makes its way to a muscle cell. (Excluding Valves)

Answer 1

sinuses, trachea, lungs, heart, artery, venule, muscle cell