The effects indirectly due to this latter agency are often combined in a complex manner, through the force of habit and association, with those directly resulting from the excitement of the cerebro-spinal system.
Experience shows that nerve-force is generated and set free whenever the cerebro-spinal system is excited.
In the reflex actions of the nerves of special sense, the sensation is transmitted through the cerebro-spinal system, and the motor impulse is sent to the deep-seated muscles by the sympathetic system.
These ganglia are intimately connected by nervous filaments, and communicate with the cerebro-spinal system by means of the motor and sensory filaments which penetrate the sympathetic.
These phenomena are not accompanied by any consciousness on the part of the individual, nor by any apparent intervention of the cerebro-spinal system.
Physiologists enumerate three kinds of reflex actions, which are either purely sympathetic, or partially influenced by the cerebro-spinal system.
One of the most interesting and significant features of the ganglia is that of their connection with the nerve centres of the Cerebro-Spinal System, indicating the reciprocal action existing between the two great nervous systems.
Various fibers from the sympathetic communicate with those of the cerebro-spinal system.
These ganglia, twenty-four on each side, and their branches form the sympathetic system, as distinguished from the cerebro-spinal system consisting of the brain and spinal cord and the nerves springing from them.
Inasmuch as the most important modifications of this function are observed in connection with the cerebro-spinal system, a brief consideration of the subject is properly studied in this chapter.
The first is the great nerve center of the body, the cerebro-spinal system, which rules the organs of animal life.
The gray fibers occur chiefly in branches from the sympathetic ganglia, though found to some extent in the nerves of the cerebro-spinal system.
These ganglia are connected with each other by filaments, and are also connected with the Cerebro-Spinal System by motor and sensory nerves.
The Cerebro-Spinal System consists of all that part of the Nervous System contained within the cranial cavity and the spinal canal, viz.
The other system, known as the Voluntary or Cerebro-spinal system, is the channel through which we receive conscious perception from the physical senses and exercise control over the movements of the body.
Thus the cerebro- spinal system is the organ of conscious mind and the sympathetic is that of sub-conscious mind.
The cerebro- spinal system is the channel of our volitional or conscious mental action, and the sympathetic system is the channel of that mental action which unconsciously supports the vital functions of the body.
The first, the cerebro-spinal system, includes all the nerves of consciousness and of voluntary action; it includes all nerves running between the brain and spinal cord on the one hand and the voluntary muscles on the other.
Sidenote: Looking Inside the Skull] The cerebro-spinal system consists of the spinal cord and the brain.
The classification of sex is certainly one of those that offer an interesting opportunity for such comparison, especially in regard to the relations existing between the operations of the ganglionic, and those of the cerebro-spinal system.
Finally, the actions of the cerebro-spinal system, intellectual and muscular, are more regular and powerful when not liable to interruption from the operations of the ganglionic nerves, and the visceral functions presided over by them.
The functions of animal life, presided over by the cerebro-spinal system, become proportionately more important than those of vegetative or nutritive life, carried on by the ganglionic.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "spinal system" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
