After about two minutes of exercise, muscles require oxygen to continuously produce energy. Carbon dioxide is a byproduct of energy production and must be removed from the muscles to maintain homeostasis.

When exhaling and inhaling, respiratory homeostasis occurs, exchanging gases at the level of the pulmonary alveolus.

This process is in charge of removing carbon dioxide from the muscles and their subsequent oxygenation.

Explanation:

Hemoglobin is in charge of associating carbon dioxide and delivering oxygen to the muscle that suffered physical activity.

Excess carbon dioxide is pathological, causing muscle acidosis in the muscle and even its possible denaturation since it is highly contained by proteins.