I've used various versions of the Stick and I agree completely that it seems overpriced when you consider what it *is*, but the darn thing is good at what it *does*, and you'll quickly get over the cost.
In vertebrate species it consists of two main parts, the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord. The PNS consists mainly of nerves, which are enclosed bundles of the long fibers or axons, that connect the CNS to every other part of the body.
The nervous system consists of the brain which brings throughout  your body    Theirs two parts of the nervous system, the cetral nervous system, and the peripheral nerv â¦ ous system. The central nervous system contains the brain, spinal cord, and retina.