06/12/2026
From nostril to lung, the equine airway is a single, continuous pathway. Air enters through the nostrils and travels through the nasal passages, the narrowest and most resistance-prone part of the system, before moving into the pharynx, larynx, trachea, and down into the lungs. From there, oxygen is transferred into the bloodstream and delivered to the muscles powering movement.
Any restriction, especially in the nasal passages, makes the whole system work harder.