respiratory system

respiratory system   Dan lymphatic system

This chart of the RESPIRATORY SYSTEM shows how you breathe Breathing is the process that brings oxygen in the air into your lungs and moves oxygen and

The upper respiratory tract consists of the nose, mouth, sinuses, pharynx , and larynx  The major passages and structures of the upper respiratory tract include the nose or nostrils, nasal cavity, mouth, throat ,

หัวใจในสายลม ep 2 When we breathe, the respiratory system takes in oxygen and sends out carbon dioxide The cells in our bodies need fresh oxygen to stay alive  The respiratory system, which includes air passages, pulmonary vessels, the lungs, and breathing muscles, aids the body in the exchange of