Translations:Oberarmknochen/9/en
Aus Dornheim Anatomy
Version vom 2. Januar 2020, 09:37 Uhr von Becher (Diskussion | Beiträge) (Die Seite wurde neu angelegt: „The bony socket (<i>Cavitas glenoidalis</i>) of the <i>Articulatio humeri</i>, a ball joint, is considerably smaller than the head of the humerus. The socket i…“)
The bony socket (Cavitas glenoidalis) of the Articulatio humeri, a ball joint, is considerably smaller than the head of the humerus. The socket is enlarged by a fibrous cartilaginous joint lip, Labrum glenoidale. The surface of the Cavitas glenoidalis is approx. 6 sqcm. The weight of the upper extremity is about 4 kg. Since there are no stronger ligaments, the muscles surrounding the joint must secure it. This is known as a muscle-secured joint. The so-called "rotator cuff" is part of this muscular securing and especially strengthens the joint capsule.
