It is usually transmitted via the respiratory route, entering through the nose and nasopharynx.
Research My research focus is on capsulated bacterial pathogens that colonize the nasopharynx and even with optimal antibiotic therapy cause mortality.
It includes the eardrum, the three little bones (hammer, anvil, and stirrup) that transmit sound to the inner ear, and the eustachian tube, which connects the inner ear to the nasopharynx (the back of the nose).
When air is inhaled (inspired), it passes through the nose and the nasopharynx or through the mouth and the oropharynx.
Nasopharynx-One of the three regions of the pharynx, the nasopharynx is the region behind the nasal cavity.