Trummiõõnsusesse

Trummiõõnsusesse refers to the space within the tympanic cavity, also known as the middle ear. This air-filled cavity is located just medial to the eardrum (tympanic membrane) and is housed within the temporal bone of the skull. The primary function of the middle ear space is to transmit sound vibrations from the outer ear to the inner ear. It contains the three smallest bones in the human body: the malleus (hammer), incus (anvil), and stapes (stirrup). These ossicles form a chain that connects the eardrum to the oval window, an opening that leads to the cochlea of the inner ear.

The trummiõõnsusesse is connected to the nasopharynx by the Eustachian tube, also known as the auditory tube. This tube plays a crucial role in equalizing pressure between the middle ear and the outside environment. When pressure differences occur, such as during airplane ascent or descent, the Eustachian tube opens to allow air to flow in or out, preventing damage to the eardrum. The cavity also contains the stapedius and tensor tympani muscles, which help to dampen loud sounds and protect the inner ear from potential injury. Inflammation or infection of the trummiõõnsusesse is known as otitis media, a common condition, especially in children.