Inside the spinal column of a human,there are 24 bones referred to ad vertebrae.Between each vertebra bone is 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 an elastic band,stretching and moving as you do.When a person falls or lands on the grouwn very hard,the vertebrae,discs and ligaments absorb the shock so that you don't get hurt.Together,these three parts function as a joint,allowing our body to bend or twist.