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Styloid process of the ulna

Other Terms: Ulnar styloid process, Processus styloideus ulnae, Processus styloïde de l'ulna


This is the small, pillar-like, posteromedial projection of the distal end of the ulna. It is a non-articular surface separated from the head by a shallow groove for the extensor carpi ulnaris.


Styloid comes from the Greek stylos meaning pillar. In combination with eidos meaning like, this term literally means a pillar-like process. Process is a term used in anatomy to describe a projection on a bone. It comes from the Latin pro- meaning forward and cessus for gone. It is an old term that can be traced back to the writings of the early anatomist Celsus.


Processus styloideus ulnae


Processus styloïde de l'ulna


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