• The bones hold the person together and allow for movement along with the muscles.
• Bones are living tissue, which is constantly renewed. That's why you need calcium, for example.
• Bones protect the internal organs.
• Bones are longitudinally durable but do not withstand twisting.
• The spine consists of the vertebrae and the discs between them.
• The joints allow the limbs to bend.
• Keywords: skeletal system, bone, spine, joint.