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He added the notes that Maril had made for him, of Murgatroyd's pulse and blood-pressure after the injection of the same culture that produced fever and thirstiness in himself and later without contact with him or the culture in Maril. He put a professional comment at the end. "The culture seems to have retained its normal characteristics during long storage in the spore state.
As adrenalin increases blood-pressure, so thyroid secretion increases brain activity, and increased brain activity in turn causes an increased activation of the motor mechanism as a whole. We know that a deficiency or lack of thyroid secretion will inhibit sexual emotion and conception, will produce stupidity and inertia; will diminish vitality.
In injury under ether anesthesia every grade of response may be seen, from the slightest change in the respiration or in the blood-pressure to a vigorous defensive struggle.
The loss of blood from any cause, if sufficient to reduce the blood-pressure, will occasion a change in the brain-cells, provided that the period of hypotension lasts for more than five minutes. This time limit is a safeguard against permanent injury from the temporary hypotension which causes one to faint.
Thus whatever raises the blood-pressure in the capillaries of the capsules, will increase the quantity of fluid filtering through them. That is, the watery portion of the secretion will be increased without necessarily adding to its solids. So anything which lowers the blood-pressure will diminish the watery portion of the secretion, that is, the secretion will be scanty, but concentrated.
In men there normally supervenes, together with the relief from the prolonged tension of tumescence, with the muscular repose and falling blood-pressure, a sense of profound satisfaction, a glow of diffused well-being, perhaps an agreeable lassitude, occasionally also a sense of mental liberation from an overmastering obsession.
In case no anamnesis is obtainable the functional nature of the trouble may be recognized by the absence of those physical signs which characterize the organic stupors. One sees no violent changes in respiration, pulse or blood-pressure, such as are present in the intoxication comas of diabetes or nephritis. There is no characteristic odor to the breath, and the urine is relatively normal.
It consisted of stressing a succession of infinitely remote details, and though Anthony perceived that this was consistent with the logic of war, it none the less irritated him. That the same faulty blood-pressure which would have been indecent in an officer did not interfere with the duties of a private was a preposterous incongruity.
And when Michael asked him contentiously what the weather had to do with Home Rule, he answered that it had everything to do with it by increasing parliamentary blood-pressure. "Wait," he said, "till we get a good thunderstorm You'll see how long the strike'll last, and what Sir Edward Carson has to say to Mr. Redmond then." Anthony kept his head.
As he observes, the apparent rays of light, light-patches, mists of light, and so on, due to changes of blood-pressure in the retina, only manifest themselves clearly when the eyes are closed and the more powerful effect of the external stimulus cut off.
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