Santa Clara is the most populous county in the San Francisco Bay Area and in Northern California, and is one of the most affluent counties in the United States.
Spinal cord. 1  The spinal cord, about 45 cm in length, extends from the foramen magnum, where it is continuous with the medulla oblongata, to the level of the first or second lumbar vertebra (The range is T12 to L3). Below that level, the vertebral canal is occupied by spinal nerve roots and meninges.
The spinal cord runs from the base of the brain to the lower back. The spinal cord is a complex system of nerve pathways. It sends messages to the brain from organs and nerves all over the body. The brain translates these signals as sensation, such as pain, hot, and cold.