- Spinal Cord – a bundle of nerves going through the spinal column from the bottom of the skull down to the mid-back. The nerves go through a tube-like space in the spinal column.
- Some nerves bring information from the body to the brain and others send back instructions from the brain to the body.
- The information going to the brain is sensory – touch, pain, temperature, pressure, position. The instructions going back to the body are mostly for muscle movement.
- Cauda Equina – the end part of the spinal cord that starts in the mid back and sends nerve fibers to the lower body.
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