GIVE articulation to the bones of the forelimbs and hindlimbs.There are two girdles- Pectoral girdle- Formed of two halves.Each half of the pectoral girdle consists of two bones- the scapula, clavicle.Pelvic girdle-Consists of two coxal bone.Each coxal bone is formed by the FUSION of three bones- ilium, ischium, and pubis.Explanation- The scapula is a large, triangular flat bone.It is situated in the DORSAL part of the thorax between the 2ND and 7th ribs.It has 3 processes that provide muscles attachment- Spinous processAcromion processCoracoid processTherefore Acromian process is the part of the scapula bone.The humerus is the bone of the forelimb.The clavicle bone COMMONLY called the collar bone.