Question

Which best describes carbon dioxide’s path out of the body?

nose → pharynx → larynx → trachea → bronchus → alveoli
alveoli → trachea → bronchus → larynx → pharynx → nose
alveoli → bronchus → trachea → larynx → pharynx → nose
nose → larynx → pharynx → trachea → bronchus → alveoliWhich best describes carbon dioxide’s path out of the body?

nose → pharynx → larynx → trachea → bronchus → alveoli
alveoli → trachea → bronchus → larynx → pharynx → nose
alveoli → bronchus → trachea → larynx → pharynx → nose
nose → larynx → pharynx → trachea → bronchus → alveoliWhich best describes carbon dioxide’s path out of the body?

nose → pharynx → larynx → trachea → bronchus → alveoli
alveoli → trachea → bronchus → larynx → pharynx → nose
alveoli → bronchus → trachea → larynx → pharynx → nose
nose → larynx → pharynx → trachea → bronchus → alveoliWhich best describes carbon dioxide’s path out of the body?

nose → pharynx → larynx → trachea → bronchus → alveoli
alveoli → trachea → bronchus → larynx → pharynx → nose
alveoli → bronchus → trachea → larynx → pharynx → nose
nose → larynx → pharynx → trachea → bronchus → alveoliWhich best describes carbon dioxide’s path out of the body?

nose → pharynx → larynx → trachea → bronchus → alveoli
alveoli → trachea → bronchus → larynx → pharynx → nose
alveoli → bronchus → trachea → larynx → pharynx → nose
nose → larynx → pharynx → trachea → bronchus → alveoli

Answer 1

Correct answer: alveoli → bronchus → trachea → larynx → pharynx → nose.

Explanation: Air (and CO2) moves from the alveoli into the small airways and bronchi, then up the trachea, through the larynx and pharynx, and out the nose or mouth.