Vegetation acts as an interface between the atmosphere and the soil. It increases the permeability of the soil to rainwater, thus decreasing runoff. It shelters the soil from winds, which results in decreased wind erosion, as well as advantageous changes in microclimate.
The shoulder is a ball-and-socket type of joint and is anatomically referred to as the gleno-humeral joint, describing the two bony structures involved. The socket is the glenoid cavity, a cup-shaped piece of bone that juts out from a corner of the shoulder blade (scapula).
1 Labrum: The labrum serves to deepen the glenoid fossa by around 50%, allowing for more contact area between the surface of glenoid and the humeral head. 2  The increase in contact area also enhances joint stability. 3  Common pathologies of the labrum include SLAP lesions and Bankart lesions.