CLINICAL MEDICINE

Detailed explanation-1: -The spinal cord is composed of gray and white matter, appearing in a cross-section as H-shaped gray matter surrounded by white matter. The gray matter consists of the cell bodies of motor and sensory neurons, interneurons, and neuropils (neuroglia cells and mostly unmyelinated axons).

Detailed explanation-2: -Your spinal cord is a band of tissues, nerves and cells. A protective layer of bone called the vertebral column covers and protects your spinal cord. The bones in the vertebral column are called vertebrae (plural of one spine bone, a vertebra).

Detailed explanation-3: -The spinal cord and spine are divided into 4 regions from top to bottom: cervical, thoracic, lumbar, and sacral.

Detailed explanation-4: -The vertebra, like all bones, has an outer shell called cortical bone that is hard and strong. The inside is made of a soft, spongy type of bone that is called cancellous bone.