Final answer:
The correct order of airflow during inhalation starts at the nasal cavity, proceeds to the pharynx, larynx, then to the trachea, followed by the bronchi, bronchioles, and finally reaches the alveoli, where gas exchange occurs.
Step-by-step explanation:
The Order of Airflow During Inhalation
Understanding the path of airflow during inhalation is essential when studying the human respiratory system. When we inhale, airflow starts at the nasal cavity, progressing through the pharynx and larynx (or voice box), before entering the trachea, which is commonly known as the windpipe. From the trachea, the air then divides into two pathways as it enters the bronchi, one for each lung. The bronchi have multiple branches called bronchioles that get progressively smaller as they extend deeper into the lungs. Eventually, the air reaches the final destination of this journey, the alveoli, which are tiny air sacs where the gas exchange with blood takes place.
Therefore, the correct order of airflow during inhalation is:
- Nasal cavity
- Pharynx
- Larynx
- Trachea
- Bronchi
- Bronchioles
- Alveoli
Given the options presented in the question, the closest matching answer would be: A. Nose, trachea, bronchi, lungs. However, this option isn't fully accurate as it omits the pharynx, larynx, and bronchioles and simplifies the lungs instead of specifying the alveoli.