Once the bronchoscope touches this area, it can easily trigger severe symptoms in the patient, such as vomiting, discomfort, and intense resistance, leading to the failure of the doctor's procedure.
Below the epiglottis lies the glottis, which is also a troublesome area for doctors. The glottis functions like a gate, opening and closing to produce sound. If a patient unconsciously holds their breath and tightly closes the gate, the doctor and bronchoscope can lose their way. Without passing through the glottis, the bronchoscope cannot enter the trachea.
The monitor continues to display, and suddenly the bronchoscope slips through the lower nasal passage. After ensuring its graceful position, it's evident that the pathway is hollow.
What does "hollow" mean? It's like shooting a basketball directly through the center of the hoop without touching the rim—silent and seamless, an unparalleled perfection.
It is about to reach the pharyngeal region.