Membrana interossea antebrachii

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The membrana interossea antebrachii is a broad band-like connection ( syndesmosis ) of the forearm that connects the spoke ( radius ) and ulna ( ulna ). The membrane is a few millimeters wide and serves as a muscle attachment surface for various forearm muscles. Its point of attachment to the spoke (radial origin) is below (distal) the end face of the radial head , the ulnar attachment is distal to the tip of the elbow cusp ( olecranon ).

In some mammals (for example ungulates ) the connection between ulna and radius ossifies , so that no membrana interossea antebrachii is formed.

The tight connection between ulna and radius means that if the ulna epiphyseal plate closes prematurely, it leads to a curvature of the radius ( radius curve syndrome ) and a valgus position . This disease occurs mainly in domestic dogs .

literature

  • Hans-Martin Schmidt, Ulrich Lanz: Surgical anatomy of the hand . 2nd Edition. Thieme, 2003, ISBN 978-3-13-130692-0 .
  • F.-V. Salomon: bone connections . In: F.-V. Salomon et al. (Ed.): Anatomy for veterinary medicine . Enke-Verlag, Stuttgart 2004, pp. 110-147, ISBN 3-8304-1007-7