Which best describes carbon dioxide's path out of the body

The correct pathway for carbon dioxide as it moves from a blood cell to the outside of the body is - c. alveoli → bronchus → trachea → larynx → pharynx → nose

Carbon dioxide (CO2) is a waste product of cellular metabolism.  To get rid of it when one breathes out (exhale).

• This gas is transported in the opposite direction to oxygen:
• It passes from the bloodstream – across the lining of the air sacs – into the lungs and out into the open.
• Carbon dioxide within the blood cell that is moved from the body tissue to the lungs is expelled from the alveolus to the bronchus
• from the bronchus to the trachea which is then passed to the larynx to the pharynx and then through the nostrils to the outside of the body.

Thus, TThe correct pathway for carbon dioxide as it moves from a blood cell to the outside of the body is - c. alveoli → bronchus → trachea → larynx → pharynx → nose

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