FacebookThe skeleton is estimated to be between 3,000 ... the remains and identified 19 complete vertebrae, five ribs, one shoulder blade, and fins. While the animal’s 39-foot length is ...

Ball and socket joints also allow flexion and extension. Flexion of the shoulder joint occurs when the humerus (upper arm) moves forwards from the rest of the body, which happens at the end of an ...

Abduction – movement away from the midline of the body. This occurs at the hip and shoulder joints during a jumping jack movement. Adduction – movement towards the midline of the body.