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 two major subdivisions: the CENTRAL NERVOUS SYSTEM (CNS) and the PERIPHERAL NERVOUS SYSTEM (PNS). The CNS consists of the BRAIN and SPINAL CORD. This is where almost all the important PROCESSING in the nervous system takes place.he best functional definition of an axon is that it is a nerve process which is capable of transmitting a nerve impulse (action potential) over some distance. The nervous system also contains cells which are not neurons and which do not DIRECTLY participate in the task of sending and receiving electrical signals.