Breathing
af Thann Thanyarattana
1. Respiratory System
1.1. Lungs
1.1.1. Air goes through
1.2. Trachea
1.2.1. Air goes through
1.3. Bronchi
1.3.1. Splits air into two lungs
1.4. Bronchioles
1.4.1. Air goes through
1.5. Alveoli
1.5.1. Gas exchange occurs
1.6. Mouth/Nose
1.6.1. Air enters body