Respiratory pathways: 1. Oxygen enters the nostrils or mouth. 2. It passes through the pharynx (throat). 3. From there, it enters the larynx (voice box). 4. The oxygen then passes through the glottis (the opening between the vocal cords). 5. Finally, it enters the trachea (windpipe), which leads to the bronchi and lungs.
Respiratory pathways:
1. Oxygen enters the nostrils or mouth.
2. It passes through the pharynx (throat).
3. From there, it enters the larynx (voice box).
4. The oxygen then passes through the glottis (the opening between the vocal cords).
5. Finally, it enters the trachea (windpipe), which leads to the bronchi and lungs.