Which muscle lies in the lamina groove?

The muscle that lies in the lamina groove is the multifidus muscle. This deep muscle is part of the intrinsic back muscles and is situated along the vertebral column, filling the space between the spinous and transverse processes. The multifidus plays a crucial role in stabilizing the spine and assisting with movements such as rotation and extension. Its location in the lamina groove helps it effectively support spinal alignment and posture.