Structure of the human respiratory system
The human respiratory system consists of the nose, the pharynx, the trachea, two bronchi, and two lungs, It is called also the respiratory apparatus, the ventilatory system and it is used for the process...
The human respiratory system consists of the nose, the pharynx, the trachea, two bronchi, and two lungs, It is called also the respiratory apparatus, the ventilatory system and it is used for the process...