Welcome back to our deep dive into the respiratory system! In Part 1, we explored how your nose, pharynx, and larynx work together to warm, filter, and humidify the air you breathe. Now, we descend further into the lungs, tracing the path of oxygen from your throat to the smallest air sacs in your body. This is where gas exchange—perhaps the most critical function for … Continue reading Journey Through the Lower Respiratory Tract and Gas Exchange Structures