The Circulation And Sleep; Experimental Investigations Accompanied By An Atlas
The Circulation And Sleep; Experimental Investigations Accompanied By An Atlas
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In our eReader you can find the full English version of the book. Read The Circulation And Sleep; Experimental Investigations Accompanied By An Atlas Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Circulation And Sleep; Experimental Investigations Accompanied By An Atlas
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During sleep, any periodic fluctuation of breathing is to be correlated with the wave in the circula- tory record. The deeper breathing corresponds to a fall and trough of volume, the more shallow to a rise and crest. In the abrupt transition from restricted to freer breathing of the first type, the change to deep breathing is very nearly simultaneous with the beginning of the fall of volume, most often a couple of pulse-beats before it, sometimes even as much after it.
CHAPTER III THE BLOOD PR...ESSURE METHOD At first an attempt was made to use the Mosso sphygmomanometer to measure the variations of blood-pressure during sleep. The result was a failure. It is impossible to estimate the blood-pressure by compression of vessels that may actively relax or constrict from test to test. Furthermore, the instrument and position are altogether too uncomfortable for work on sleep.
The apparatus finally used was as follows. A sleeve (Riva-Rocci or Erlanger) was fastened around the left arm above the elbow.
What to read after The Circulation And Sleep; Experimental Investigations Accompanied By An Atlas?
You can find similar books in the "Read Also" column, or choose other free books by John Frederick Shepard to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
During sleep, any periodic fluctuation of breathing is to be correlated with the wave in the circula- tory record. The deeper breathing corresponds to a fall and trough of volume, the more shallow to a rise and crest. In the abrupt transition from restricted to freer breathing of the first type, the change to deep breathing is very nearly simultaneous with the beginning of the fall of volume, most often a couple of pulse-beats before it, sometimes even as much after it.
CHAPTER III THE BLOOD PR...ESSURE METHOD At first an attempt was made to use the Mosso sphygmomanometer to measure the variations of blood-pressure during sleep. The result was a failure. It is impossible to estimate the blood-pressure by compression of vessels that may actively relax or constrict from test to test. Furthermore, the instrument and position are altogether too uncomfortable for work on sleep.
The apparatus finally used was as follows. A sleeve (Riva-Rocci or Erlanger) was fastened around the left arm above the elbow.
What to read after The Circulation And Sleep; Experimental Investigations Accompanied By An Atlas?
You can find similar books in the "Read Also" column, or choose other free books by John Frederick Shepard to read onlineMoreLess
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