Mastoid fossa

The mastoid fossa (lat. Fossa mastoidea, also mastoideus) is a depression on the lateral surface of the skull, bounded by the processes of the temporal bone and the pyramids of the temporal bones, as well as the posterior surface of the mastoid process.

The mastoid fossa is oval in shape and is located on the side of the head between the temples and the back of the head. It is one of the most important anatomical structures of the skull and is associated with many important body functions, including hearing, balance and circulation.

The mastoid fossa contains the auditory canal, which connects the middle ear with the external environment and ensures the transmission of sound signals. Also in the fossa are vessels and nerves that provide blood supply and innervation to the ear and skull.

In addition, the mastoid fossa is the location of the mastoid processes, which are part of the temporal bone. The processes serve to protect the ear from external influences and infections.

Dysfunction of the mastoid fossa can lead to various diseases such as hearing impairment, ear infections and others. Therefore, it is important to monitor the condition of the mastoid fossa and undergo regular medical examinations.