Reviewed By: Tyler Wheeler, MD | Article Featured on Medicinenet.com
Are you glad you can stand or sit upright? Thank your spine, a stack of little bones called vertebrae along the center of your back, from your seat to your neck. It supports your head, shoulders, and upper body. Your spine plays another key role: The vertebrae make a tunnel for your spinal cord. That’s the set of nerves that connect your brain to most of your body.