Spine Anatomy - Part 1: Bony Strutures

Bony Structures of the Spine

The function of the spine is to provide mobility and stability to the body so we can move.

The spine is made up of 24 bones called the vertebrae. They are the building blocks of the spine. The vertebrae are stacked one on top of the other like building blocks to form the spinal column. The spinal column provides protection for the spinal cord to allow for transmission of neural signals between the brain and the body. In between each vertebrae is the disc which provides cushioning and shock absorption.

The spine has three natural curves that gives the spine an "s" when looking at the spinal column from the side. The cervical spine, or neck, curves inward. The thoracic spine, or upper and middle back, curves outward. The lumbar spine, or lower back, curves inward. These natural curves of the spine have a very specific function to absorb shock when you are upright during sitting, standing, walking, running, jumping and all daily activities. These natural curves help to distribute forces It is important to maintain the natural curves in your spine to prevent lower back and neck strain. The natural curves in your spine are considered "Neutral Spine" and is basically proper posture. In addition, the natural curves of the spine put the muscles in the position where they work the best.

I am having technical difficulties with photos...so this entry will be continued with some graphics. But I think I covered the basics of the bony structures of the spine. It will be further illuminated with graphics.