Synchronicité entre la Systole-Diastole du Cortex/Matière Grise & la Respiration Pulmonaire

The Brain, volume I, editor's notes, note I, pp. 645-700, extraits:

p. 673: “20. [...]“

"From this universal theory of Swedenborg, concerning the relations which exist between the motion of the brain and the respiration of the lungs, it follows that when the brain expresses the spirit or nervous fluid from its grey substance into the nerves of the body, when therfore the brain has its expiratory motion, the lungs go through the process of inspiration, and vice versa.“

p. 674: “22. Since according to Swedenborg, the motion of the brain through its nerves is communicated not only to the lungs, but also to all the remaining parts of thebody, and hence to the arms and legs; [..., ..., ..., ..., ..., ..., ...], [...] the respiratory movements in all parts agree with the inspiration and expiration of the lungs; that is the parts subside when the lungs subside, and the parts rise when the lungs rise.“ [...]

The Motion of the Brain - The Respiratory Motion of the Brain

“13. Another point flowing from Swedenborg theory of the motion of the brain, namely that it is synchronous with respiration, is this, that the blood-vessels of the brain, which are continuations of the internal carotids and the vertebrals, on entering the cranium are emancipated from the motion of the heart, and move in the stream of the animatory motion of the brain, which is synchronous with respiration. [...] .“

His statement in brief on this subject is as follows: “As soon as the arteries of the body reach the first threshold of the head, the cranium, they renounce the government of the heart and suject themselves to the cerebrum and cerebellum. [...] As soon as these (internal carotids + vertebral arteries) touch the bony thresholditself, they [...] ; they also lay aside their motory coating beyond which the heart of the blood cannot act; moreover, they are dilated contrary to customary usage, and at last after repeated decussations, they insert themselves into the pia mater, and after being ramified into least threads, they enter into the cerebrum and cerebellum without blood, and submit themselves entirely to their orders“ (i. no. 55). 

“What does sciences say to this? [...] , Burdach (Karl Friedrich, German physiologist, 1776-1847) confirms in these words, [...] . 

“Here then we have another confirmation of Swedenborg's doctrine in respect to the motion of the brain; namely that the motion of the brain itself is synchronous with respiration, while the pulsatile motion, which is usually attributed to the brain, belong to the dura mater.  The experiment of Key and Retzius,  to which we have refered above, confirms also a statment made by Swedenborg to this effect, [...] . 

“To the fact that the arterial as well as the venous blood of the encephalon is emancipated from the juridiction of the heart, and is placed under the immediate government of the brain, which imbues it with its own motion, we also attribute a peculiarity noticed by physiologists in connection with the circulation of the blood within the cranium, namely a tendency in the blood of remaining within the cranium, and a disinclination to being forced thence.“ 

“14. The next point [...] . This involves the relation which the dura mater and the brain occupy in respect to one another. (Note de A.C.: sujet qui sera traité en détail ailleurs - ici, juste quelques premières informations.) On this subject, Swedenborg says, “The dura mater grants the brain space, bounds, measure, mode, and ability of swelling in alternate times; nay, as a common or general bond it permits it even to reciprocate the times of its animation; and to this it also contributes its own share. [...] ; for without the dura mater, or when its bands are loosened - when, therfore, the brain os not embraced by the dura mater - the brain raises itself only with great difficulty; [...] ;