There is an approximately 4-to-1 disproportion in size between the large head of the humerus and the shallow glenoid cavity . The glenoid cavity is made deeper by the addition of the fibrocartilaginous ring of the glenoid labrum.
22.
There is an approximately 4-to-1 disproportion in size between the large head of the humerus and the shallow glenoid cavity . The glenoid cavity is made deeper by the addition of the fibrocartilaginous ring of the glenoid labrum.
23.
Radial nerve palsy can result from the now discredited practice of correcting a dislocated shoulder by putting a foot in the person's armpit and pulling on the arm in attempts to slide the humerus back into the glenoid cavity of the scapula.
24.
At the upper part of the fossa is a transverse depression, where the bone appears to be bent on itself along a line at right angles to and passing through the center of the glenoid cavity, forming a considerable angle, called the subscapular angle; this gives greater strength to the body of the bone by its arched form, while the summit of the arch serves to support the spine and acromion.
