Does nerve system provide the perfect defenition for Mind?

I was referring practical psychology by EDWARD STEVENS ROBINSON  last week. In that book he explains the mind as the function of nerve system. The basic for this conclusion is that when a man subject to anesthesia his nerve system is affected and becomes unconscious. I thought that it might be true. And I continued reading. 

    Psychology divides organs into two group receptors and effectors. Receptors(sense organs) are those organs that receive stimuli from peripherals and send them to nerve center. When these stimuli reach the nerve center it produce some effect, they send some signals to some other peripheral organs, glands and muscles, and produce effects so they are known as effectors. When we consider these stimuli and their respective effects, it can be seen that these cause and effect are not the same in all individuals. This phenomenon determines the behavior and character to a great extend. How is it? If one person responds to some stimuli continuously in a particular way, it becomes a habit. The reason for that is a neural arc takes place in him. What is neural arc? It is specific route of sending one stimulus to nerve center and its result to effectors. That is why when dusts come to eyes we close our eyes, first we see dusts come, stimulus, and then signal goes to nerve center and as a result some signals from nerve center come to the muscles of eyelids to function it. 

     But in many cases these neural arcs can be altered and we can establish new neural arcs there by new habit can be established. This is the basic of most training and character building and all. But if we want to alter the existing neural arc we have to interfere in it deliberately. It’s a mental training, means our mind should interfere in it. Our mind controls the functions of our nerve system; internal functions are not easy to control so but possible. Here is the contradiction with what the book stated first. “Mind is the function of nerve system”, but here mind interfere in the function of nerve system. What we have to think about it? Anyway psychology is not succeeding in proving that mind is completely the product of the function of some physical organs. 

      Here the important of Chapter 3 of book Genesis in Bible prevails. Eve's mind couldn’t control her sense organs but sense organs controlled her mind and habits. That was the wrong she committed.