Q.

Glenoid cavity articulates                    [2015]

1 clavicle with scapula  
2 humerus with scapula  
3 clavicle with acromion  
4 scapula with acromion  

Ans.

(2)

Upper rounded end of the humerus (bone of arm) is called head that articulates into the glenoid cavity of the pectoral girdle (shoulder girdle) of scapula or shoulder blade bone.