Inside the spinal column of a human, there are 24 bones referred to as vertebrae. Between each vertebrae is a circular-shaped disc. These discs, separated into five distinct sections, rotate or move around as your body moves. If a basketball player jumps and shoots the ball, the discs will turn inside the spinal column. This allows the player to twist in the air. Connecting all these bones and discs is tissue called ligaments. These ligaments are just like on the ground very heard, the vertebrae, discs and ligaments absorb the shock that you don't get hurt. Together, these three parts function as a joint, allowing our body to bend or twist.