The skeleton can be divided into two parts. The axial skeleton (red) forms a central core that supports the upper body and protects important organs. The appendicular skeleton (blue) consists of the arm and leg bones, and the bony gridles that connect them to the axial skeleton.
Axial skeleton
This is made of 80 bones of the skull, vertebrate column, ribs, and breastbone. The bones of the axial skeleton, along with ligaments and muscles, allow the human body to maintain its upright posture. The axial skeleton also transmits weight from the head, trunk, and upper extremities down the back to the lower extremities. In addition, the bones protect the brain and organs in the chest.
Appendicular skeleton
This consists of the 126 bones of the upper and lower limbs, and the shoulder and hip gridles. It includes the bones of the arms and legs, hands and feet, and shoulder and pelvic girdles. The bones of the appendicular skeleton make possible locomotion and other movements of the appendages. They also protect the major organs of digestion, excretion, and reproduction.
Picture Credit : Google