1.
breaths in air pushes out carbon dioxide
6.
Begins at the 6th cervical vertebra
7.
nose pharynx larynx trachea
8.
the system that has alveolus
9.
the only external visible anatomy of respiratory system
10.
Superior region posterior to nasal cavity.
11.
Extends between soft palate and base of tongue.
13.
Air leaves the pharynx and enters larynx via
14.
Folds back over the glottis during swallowing
18.
reduction in diameter of airway
19.
completely cartilage-free,1 mm diameter, and Restricts airflow
20.
fluid reduces friction between pleural surfaces
