The respiratory zone is composed of the

Question

Question 47 options:

mouth, nose, bronchi, and alveolar sacs

trachea, bronchi, bronchioles, and alveolar ducks

pharynx, trachea, and respiratory bronchioles

respiratory bronchioles, alveolar ducks and alveolar sacs

Answer 1

respiratory bronchioles, alveolar ducts and alveolar sacs