What kind of lever is the glenohumeral joint What kind of le

Solution

Glenohumeral joint: It is the major joint rotates in all direction of body axis (360 degrees) and it’s concave region compose of hyaline cartilage and associated with the acromioclavicular joint. On the other hand shoulder complex has sternoclavicular joint articulates with other parts such as sternum and clavicle. The glenohumoral joint is mainly a “first class lever” because in this kind of lever, humoral head of this joint is linked to the supraspinatus so that this first class lever is useful for abduction movement by “pulling top of the humoral head inward”.