0 relating to the eardrum (= the thin piece of skin inside the ear that moves backwards and forwards when sound waves reach it, allowing you to hear sounds) -- 鼓膜的
This is associated with a high incidence of acute otitis media due to secondary infection, tympanic membrane abnormalities including perforations and cholesteatoma.
Medially, it presents a narrow furrow, the "tympanic sulcus", for the attachment of the tympanic membrane.
The brain stem is supplied by the carotid artery, the latter being closely related to the tympanic membrane.
They can also be found on the tympanic membrane.
Pressure waves move the tympanic membrane which in turns moves the malleus, the first bone of the middle ear.
The outer ear consists of the pinna and auditory canal, and the boundary between it and the middle ear is formed by the tympanic membrane, or eardrum.
The lesser petrosal nerve is a continuation of the glossopharyngeal nerve after it exits the skull via the jugular foramen and innervates the tympanic plexus.
On the inner surface of the tympanic membrane, the chorda tympani crosses this area.
