About the Spine (Part 1)Posted by Jason Huffman on December 27th, 2019 The spine is one of the most important parts of our bodies. It’s essential to understand how it works in order to prevent injuries and back pain. Your spine is made up of a series of small bones called vertebrae. Your vertebrae are divided into three sections, along with the sacrum and tailbone:
The spine is a complex structure that is always responding to constant demands. It holds up your head, shoulders, and upper body. You are able to stand up straight, thanks to the support of your spine. It’s the reason you’re able to bend and twist, all while protecting your spinal cord. What Are the Parts of Your Spine?Understanding how your spine works can help you understand the common causes of back pain.
What Are Intervertebral Discs?In between each vertebra, you’ll find flat and round discs which are about a half-inch thick. These intervertebral discs serve as shock absorbers between two vertebrae. When you walk or run, each disc prevents the vertebrae from bumping against one another. The discs between the vertebrae enable your back’s flexibility. What Do the Spinal Cord and Nerves Do?The spinal cord carries motor information from your brain to your body. It also carries sensory information from your body back to your brain and coordinates important reflexes in your body. Nerves branch out from the spinal cord through openings in the vertebrae to carry messages between the brain and muscles. The spinal cord ends in the lower back and continues as a bundle of nerve roots called the “cauda equina”. They exit the spinal canal through openings in the vertebrae (foramen), just like other nerve roots. In the pelvis, some of the nerves group into the sciatic nerve, which is a nerve that starts in your lower back and extends down the leg. In many cases, back pain is related to ageing discs. In children and young adults, disks have high water content. As you age, the discs begin to dry out and shrink. They lose their ability to cushion the vertebrae, which can result in pain. Spinal Nerve Root, Spinal Nerves and the ForamenThe spinal nerve root is where the spinal nerves branch off from the spinal cord. The spinal nerves then pass through small openings of the vertebrae. These nerves affect the movement and feeling in the muscles and skin. They are also involved in the function of your digestive and urinary systems. Movement of the Spine
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