Breathing

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

2. Gas Exchange

2.1. Oxygen enters the blood through capillaries

3. Respiration

3.1. Chemical process which happens in the cells

3.2. Comes from breathing