Which of the following match with respect to the respiratory tract is incorrect?
Goblet cells, which secrete mucus ->, Present only in the nose.
A: The conducting zone includes, the nose, the nasopharynx, the larynx, the trachea, bronchi, bronchioles, and terminal bronchioles. The area from the Nose to the Bronchioles is lined with ciliated pseudostratified columnar cells.
B: The respiratory zone includes respiratory bronchioles, alveolar ducts and sacs; and have simple cuboidal or squamous cells for the easy exchange of gases.
C: Eustachian tube is the channel that links the middle ear with the nasopharynx. Most of the time, this tube remains closed, but opens during swallowing and yawning; this mechanism equalizes pressure in the middle ear with the outside air pressure.
D: The goblet cells, which secrete mucus, are present throughout the respiratory tract, from the nose to the bronchi and larger bronchioles.