The nose acts as a filter for the air we breathe from "summary" of Breath by James Nestor
The nose is not just a decoration at the center of our faces. It is a highly sophisticated organ that plays a crucial role in our breathing. One of its primary functions is to act as a filter for the air we breathe. When we inhale through our nose, the tiny hairs inside called cilia act as a barrier, trapping particles like dust, bacteria, and pollutants that can harm our respiratory system. These cilia work in conjunction with the mucous membranes in our nasal passages to not only filter out harmful substances but also to moisturize and warm the air before it reaches our lungs. This filtration process is essential for maintaining healthy respiratory function and protecting our bodies from potential infections or irritants in the air. Without this natural defense mechanism, our lungs would be much more vulnerable to airborne threats. In addition to filtering the air we breathe, the nose also plays a key role in maintaining proper breathing mechanics. When we breathe through our nose, we activate the diaphragm and engage the lower lobes of our lungs, allowing for more efficient oxygen exchange. This is why nasal breathing is often recommended during physical activity or times of stress, as it can help regulate our heart rate, blood pressure, and overall oxygen levels.- The nose is a remarkable organ that goes far beyond its aesthetic purpose. It acts as a vital filter for the air we breathe, protecting our respiratory system and promoting optimal breathing mechanics. Understanding and appreciating the intricate functions of the nose can lead to improved respiratory health and overall well-being.
