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).
rotator cuff. ligaments of the glenohumeral joint strengthen the joint only minimally. Most of the joint's strength is due to the ____ muscles, surround it. These muscles work in a group to hold the head of the humerus in the glenoid cavity. The tendons of these muscles encircle the joint and fuse with the articular capsule.