Where is the spinal cord located? What is the importance of cerebrospinal fluid? Where is she located?

The spinal cord is a cylindrical cord located in the vertebral canal, stretching from the occipital foramen of the skull to the lower back. It is surrounded by three shells. Along the axis of the spinal cord is the spinal canal filled with cerebrospinal fluid, which expands, continuing into the brain, and forms the ventricles. Cerebrospinal fluid protects the brain and spinal cord from mechanical damage, ensures the constancy of homeostasis and intracranial pressure.