茎状突起 - Processus styloideus

説明

The radial styloid process is a projection of bone on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection. 

In the horse the distal part of the ulna is incorporated within the radius: for sake of clarity, the Nomina Anatomica Veterinaria has inserted two subentries for the styloid process for horse:

  • The medial styloid process that is homologous to "styloid process" and sometimes denominated as the "radial styloid process".
  • The lateral styloid process that appears to originate from the radius, although developmentally it belongs to the ulna and sometimes denominated as the "ulnar styloid process".

Text by Antoine Micheau, MD - Copyright IMAIOS

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