Processus mastoideus

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Synonyms
Warzenfortsatz, Mastoid

The processus mastoideus is part of the Os temporale and forms a prominent, pneumatized bony prominence.

Anatomy

The external surface of the processus mastoideus is rough and serves as an attachment site for the following muscles[^1]:

Figure

Anatomical landmarks in the lateral view of the skull
Anatomical landmarks in the lateral view of the bony skull. Figure adapted from Takanori Fukushima, Manual of Skull Base Dissection, 3rd Edition. ISBN: 9780965198615.

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