A. Sternum iv. Flat bones

Flat bones are the bones which are expanded into broad, flat plates. They are found in the sternum, hip bones, ribs, etc.

B. Glenoid Cavity iii. Pectoral girdle

The glenoid cavity is a depression which articulates with the head of the humerus bone along the pectoral girdle located in the shoulder.

C. Freely movable joint i. Synovial fluid

The freely movable joints have synovial fluid which is filled in the synovial cavity between the articulating surfaces of the freely movable joints. The synovial fluid reduces friction and shock between the joints and the joints function without any grinding noise or pain.

D. Cartilaginous joint ii. Vertebrae

Cartilaginous joints are flexible joints which allow more movement and they are found in the vertebral column. The ribs are connected to the sternum with the help of hyaline cartilage.