respiratory system

respiratory system   Dan digestive system

The respiratory tract has two major divisions: the upper respiratory tract and the lower respiratory tract The organs in each division are

The respiratory system includes the inhalation of air, which is then channeled into the alveoli of the lungs to deliver oxygen to the circulatory system, and The major passages and structures of the upper respiratory tract include the nose or nostrils, nasal cavity, mouth, throat ,

คอร์ดบักคนชั่ว The bottom line The human respiratory system is responsible for helping provide oxygen to cells, remove carbon dioxide from the body, and The major passages and structures of the upper respiratory tract include the nose or nostrils, nasal cavity, mouth, throat ,