Alveoli are the basic functional units of the human respiratory system, acting as tiny air sacs that exchange gases. Air inhaled through the mouth and nose flows into the lungs through the branched ...

This 1930s educational film provides a detailed exploration of the respiratory and excretory systems, combining live-action demonstrations, animations, and intertitles to illustrate human anatomy and ...

Lung diseases like emphysema or chronic obstructive pulmonary disease are a leading cause of death worldwide. With the advent of COVID-19, these diseases have only become more prevalent. Despite the ...

To track the course of inhaled microplastics and their even smaller counterparts, nanoplastics, the study authors constructed a detailed computer model of the human respiratory system from the nose to ...

Nicolás Catalán, coauthor of the research, with the three-dimensional model of the human upper respiratory tract. The mask in the background hides the 3D model to simulate any impact of the facial ...