This 1930s educational film provides a detailed exploration of the respiratory ... excretory system, showcasing kidneys, ureters, the bladder, and the urethra, emphasizing the process of waste ...

For the majority, breathing is an unconscious process, overlooked in daily ... one is much better for our respiratory system ...

This function is performed by proteins known as respiratory complexes, which work together in the energy-generating process. Although these respiratory complexes were discovered 70 years ago ...