What to Know Spinal

The spine, also known as the vertebral column, is a flexible structure that provides support, protection, and mobility to the body. It consists of 33 small bones, called vertebrae, which are stacked one on top of the other. The spine is divided into five regions: the cervical (neck) spine, thoracic (mid-back) spine, lumbar (low back) spine, sacral (pelvic) spine, and coccygeal (tailbone) spine.

Here are some things to know about the spine:

- Spinal vertebrae: Each vertebra is made up of a body, two pedicles, two laminae, and seven processes. The body is the main part of the vertebra and it supports the weight of the body. The pedicles are two thick pillars that connect the body to the laminae. The laminae are two flat plates that form the roof of the spinal canal. The processes are bony projections that extend from the vertebrae.

- Spinal cord: The spinal cord is a long, cylindrical bundle of nerves that runs from the brain down the spine. It is responsible for carrying messages between the brain and the rest of the body.

- Spinal nerves: Spinal nerves are branches of the spinal cord that emerge from the spine through small openings between the vertebrae. Each spinal nerve carries sensory information from the body to the brain and motor information from the brain to muscles.

- Intervertebral discs: Intervertebral discs are located between the vertebrae and act as shock absorbers. They are made of a tough outer layer of cartilage and a soft inner layer of jelly-like material.

- Facet joints: Facet joints are small joints that connect the vertebrae and allow for movement of the spine.

- Ligaments: Ligaments are tough bands of tissue that connect the vertebrae and help to stabilize the spine.

- Muscles: Muscles surround the spine and help to support it and control movement.

The spine is a complex and important structure that plays a vital role in our ability to move, stand, and function properly. Maintaining good spinal health is essential for overall health and well-being.