Which one of the following statements is true?

Options

A. Head of humerus bone articulate with acetabulum of pectoral girdle
B. Head of Humerus bone articulates with glenoid cavity of pectoral girdle
C. Head of humerus bone articulates with a cavity called acetabulum of pelvic girdle.
D. Head of humerus bone articulates with a glenoid cavity of pelvic girdle.

Answer

B

Explanation

Each pectoral girdle consists of two bones : 1 clavicle and 1 scapula. At the point where the superior and lateral borders of the scapula meet, there is a lateral angle which presents a shallow articular surface termed as glenoid cavity into which the head of the numbers is articulate.