âRat poison doesnât just kill rats, especially the stuff you might be putting out in todayâs world,â said Dr. Travis Longcore, an associate professor of spatial sciences at the University of Southern California and the science director of the Urban Wildlands Group, a Los Angelesâbased nonprofit.
Medical Definition of glenoid labrum. : a fibrocartilaginous ligament forming the margin of the glenoid cavity of the shoulder joint that serves to broaden and deepen the cavity and gives attachment to the long head of the biceps brachiiâcalled also labrum.
The socket of the shoulder joint is extremely shallow, and very unstable. This means that the bones of the shoulder are not held in place adequately. Thus, the shoulder joint has a cuff of cartilage called a labrum that forms a cup for the end of the arm bone to move within. The labrum circles the shallow shoulder socket to make the socket deeper. This cuff of cartilage makes the shoulder joint much more stable, and allows for a very wide range of movements. The labrum is made of a thick tissue that is susceptible to injury with trauma to the shoulder joint. If you have injured your shoulder, a labral tear may be the culprit.