Ground covers continue to be popular landscape plants in the Southeastern United States. The most popular ground cover for landscape use in the South is liriope. The three most popular liriope species grown in the Southeast are L. muscari (clumping), L. gigantea (giant) and L. spicata (spreading).
Understanding Spinal Anatomy: Intervertebral Discs. Between each vertebral body is a cushion called an intervertebral disc. Each disc absorbs the stress and shock the body incurs during movement and prevents the vertebrae from grinding against one another. The intervertebral discs are the largest structures in the body without a vascular supply. By means of osmosis, each disc absorbs needed nutrients.
Herniated Nucleus Pulposus. There are soft-tissue discs between the bony vertebral bodies in your thoracic spine (rib cage area) that are called intervertebral discs. These discs are composed of a soft gel-like center called the nucleus pulposus, and a tough outer layer that surrounds the disc called the annulus fibrosis. The intervertebral disc creates a joint between each of the vertebral bodies that allows them to flex and extend, rotate slightly, and laterally bend.