respiratory system

respiratory system   Dan skeletal system

The lungs and respiratory system allow us to breathe They bring oxygen into our bodies and send carbon dioxide out (called

The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants  The respiratory tract is the path of air from the nose to the lungs It is divided into two sections: Upper Respiratory Tract and the Lower Respiratory Tract

ดูไบ1688 Since the lungs process air, they are the only internal organs that are constantly exposed to the external environment Central to the human respiratory system The respiratory system ; Nasal cavity · Air is warmed and filtered as it enters the body ; Trachea · Brings air into the lungs Supported by rings of cartilage