Three of the following pairs of the human skeletal parts are correctly matched with their respective inclusive skeletal category and one pair is not matched. Identify the non -matching pair.

Pairs of skeletal parts

Category

Sternum and ribs

Axial skeleton

Pairs of skeletal parts

Category

Clavicle and glenoid cavity
Pelvic girdle

Pairs of skeletal parts

Category

Humerus and ulna
Appendicular skeleton

Pairs of skeletal parts

Category

Malleus and stapes
Ear ossicles

Solution

Pairs of skeletal parts	Category
Clavicle and glenoid cavity	Pelvic girdle

Clavicle and glenoid cavity are found in a pectoral girdle. Each half of pectoral girdle consists of the clavicle and a scapula. Glenoid cavity is a depression below the acromion (the expanded process of scapula). The glenoid cavity articulates with the head of the humans to form the shoulder joint.