Question

Suppose a carbon dioxide molecule leaves a respiring muscle cell in the leg and is transported in blood to the lungs. it moves through

1) heart
2) systemitic vein
3) alveolar capillaries
4) pulmonary artetry
5) capillaries near muscle cells
in what order does this carbon dioxide molecule encounter these structures?

Answer 1

Step-by-step explanation:

the carbon dioxide molecule encounters the structures in the following order: 5) capillaries near muscle cells, 2) systemic vein, 1) heart, 4) pulmonary artery, and 3) alveolar capillaries.