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Our nature and history have so disposed our frame that thus all physiological and psychic processes are stimulated, products of decomposition are washed out by oxygenation and elimination, the best reaction of all the ganglionic and sympathetic activities is accused, and vegetative processes are normalized.
One should salute a gentleman in yawning, salute him in hiccuping, salute him in sneezing, salute him in coughing, and that evidently because of your interest in his health; for he may dislocate his jaw in yawning, and the hiccup is often a symptom of grave disorder, and sneezing is perilous to the small blood-vessels of the head, and coughing is either a tracheal, bronchial, pulmonary, or ganglionic affection."
A third proposition is, moreover, common to both, namely, that repose of the cerebro-spinal system is not required throughout the entire period of ganglionic activity, unless in exceptionally morbid cases. Thus, the process of digestion occupies from three to five hours, but an hour's repose after dinner is generally sufficient to avert discomfort.
In fact, the ganglionic corpuscles of each eye may be considered as constituting a little brain, connected with the masses behind by the commissure, commonly called the optic nerve. We are prepared, therefore, to find these two little brains in the most intimate relations with each other, as we find the cerebral hemispheres.
From which it may be concluded that they are controlled not so much by objective and proper apprehension as by subjective ideas, which excite desire and arise through the influence of the ganglionic system upon the brain; accordingly they are moved by a certain illusion....
The ganglionic nervous excitement coincident with the maturation of the ovule and the congestion of the uterus, is easily communicated to the vaso-motor nerves of the latter organ.
Caxton to walk with her to market. By the way they passed a sward of green, on which sundry little boys were engaged upon the lapidation of a lame duck. It seemed that the duck was to have been taken to market, when it was discovered not only to be lame, but dyspeptic, perhaps some weed had disagreed with its ganglionic apparatus, poor thing.
These latter functions are themselves effected with more regularity and more force, when the activity of the cerebro-spinal system predominates over that of the ganglionic.
The ganglionic power carried the brain; but there were, of course, combinations of all grades. In the case of Henry Ward Beecher, two of whose photographs he held in his hand, he dwelt on the disadvantage of having only the shadow instead of the substance of his head to deal with. Here, he said, we had all the elements on a large scale.
The effect upon the latter is probably due to the spinal nerve-fibres contained in the plexus, and upon which the ganglionic excitement acts like the galvanism in Schiff's experiment, already described. Direct stimulation of the vaso-motor nerves, alone, as has been said, contracts the blood-vessels. Stimulation of the spinal fibres associated with them exercises the contrary effect.