Type of cartilage seen in the tracheal wall is

The lungs are covered by a double-layered membrane known as the pleura. What is the inner layer,which is in contact with the lung surface,called?

In the terminal bronchiole,which of the following is present?

Select the correct option based on the number of structures in the human respiratory system:
$I$ - Trachea,$II$ - Terminal bronchioles,$III$ - Secondary bronchi,$IV$ - Tertiary bronchi

In humans,the nasal cavity is separated from the buccal cavity by a bone known as:

Give the exact location of the lungs.