33 – Human Respiratory System

Anatomical diagram against a white background shows a human figure from a profile perspective, focusing on the respiratory system. Upper respiratory tract (nasal cavity, nostrils, oral cavity, pharynx and larynx), and lower respiratory tract (trachea, lungs, bronchi, bronchioles, alveoli, and diaphragm) are displayed centrally and labeled with connecting lines. The diagram also has the title “Human Respiratory System.”