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There are a thousand instances of involuntary motions associated in this manner; as in the act of vomiting, while the motions of the stomach and oesophagus are inverted, the pulsations of the arterial system by a certain sympathy become weaker; and when the bowels or kidneys are stimulated by poison, a stone, or inflammation, into more violent action; the stomach and oesophagus by sympathy invert their motions.
They also further say, that there are in the generation of the foetus, or young ones, two principles, active and passive; the active is the man's seed elaborated in the testicles out of the arterial blood and animal spirits; the passive principle is the ovum or egg, impregnated by the man's seed; for to say that women have true seed, say they, is erroneous.
Then he proceeded to study the action of the arteries and showed that their period of diastole, or expansion, corresponded with the systole, or contraction, of the heart, and that the arterial pulse follows the force, frequency and rhythm of the ventricle and is, in fact, dependent upon it.
"Surely it is obvious," said I. "If a missing man is known to have suffered from some affection, such as heart disease, aneurism, or arterial degeneration, likely to produce sudden death, that fact will surely be highly material to the question as to whether he is probably dead or alive." "No doubt you are right," said Mr. Jellicoe.
The gradual diminution of the field of vision is due in greater part to death of peripheral nervous elements of the retina, those parts of the field farthest removed from the large arterial trunks suffering first.
Besides, I wish such persons to observe that the grand artery and the arterial vein are of much harder and firmer texture than the venous artery and the hollow vein; and that the two last expand before entering the heart, and there form, as it were, two pouches denominated the auricles of the heart, which are composed of a substance similar to that of the heart itself; and that there is always more warmth in the heart than in any other part of the body and finally, that this heat is capable of causing any drop of blood that passes into the cavities rapidly to expand and dilate, just as all liquors do when allowed to fall drop by drop into a highly heated vessel.
The door was opened. The doctor peeped out of his parlour. 'Well? enquired the major, confoundedly frightened. 'Pretty well, thank ye, but awfully fagged up all night, and no use. 'But how is he? asked the major, with a dreadful qualm of dismay. 'Same as yesterday no change only a little bleeding last night not arterial; venous you know only venous.
As such a criterion cannot be had, the frequency of pulsation, the age of the patient being allowed for, will in some measure assist us to distinguish arterial strength from arterial debility, since in inflammatory diseases with strength the frequency seldom exceeds one hundred and eighteen or one hundred and twenty pulsations in a minute; unless under peculiar circumstance, as the great additional stimuli of wine or of external heat.
Thus it may be conceived, that in diseases accompanied with strength, as in inflammatory fevers with arterial strength, that the cause of greater fibrous contraction, may exist in the increased mobility of the fibres, whose contractions are thence both more forceable and more frequent.
If the blood continues to flow, tie a bandage round the limb on the side of the wound away from the heart and keep the limb raised. Arterial bleeding must be treated by tying on the pad and bandage, and if the bleeding continues, stopping the flow in the artery on the side of the wound nearest the heart, and at some point where it passes over a bone so that pressure may be efficiently applied.
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