The various parts labeled in the picture are:

1. Nose
2. Pharynx
3. Epiglottis
4. Larynx
5. Trachea
6. Lung
7. Bronchus
8. Bronchioles
9. Diaphragm

Three text boxes are seen one below the other on the right. The first text box reads ‘Nose: Air enters the body through the nose, where it is filtered, moistened, and warmed’. The second text box reads ‘Pharynx, Larynx, and Trachea: From the nose, air moves into the pharynx. Then, it passes through the larynx, which contains the vocal cords, and through the trachea’. The third text box reads ‘Lungs: From the trachea, air moves into the bronchi. Each bronchus leads to one lung. The bronchi divide into bronchioles, which eventually end at alveoli’. A section of the lung is enlarged to show its structural parts. The parts labeled in the picture are;

1. Pulmonary artery
2. Bronchioles
3. Alveoli
4. Capillaries
5. Pulmonary vein