What Does The Upper Respiratory System
Cons...
Nose, Nasal Cavity, Sinuses, And Pharynx
What Does The Lower Respiratory System
Cons...
Larynx, Trachea, Bronchi, And Lungs
Surfactant Cells
Secrete Surfactant To Keep The Alveoli From S...
Oblique Fissure
Separates Left Lung Into Superior And Inferio...