Where is the spinal cord located in the human body and what is its structure?

The human spinal cord, like other animals, is located inside the tubular bones. Namely in the spinal canal. He, like the brain, is divided into right and left halves. It has three layers of coating: vascular, arachnoid and hard. The gray matter is located in the center of the spinal cord. In section, it resembles a butterfly in shape. There is also a spinal canal. It connects the brain with other organs: heart, lungs, liver, kidneys, etc. The spinal cord has a conductive function and a reflexive function.