Animal Mechanism: a Treatise On Terrestrial And Aerial Locomotion
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In our eReader you can find the full English version of the book. Read Animal Mechanism: a Treatise On Terrestrial And Aerial Locomotion 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 Animal Mechanism: a Treatise On Terrestrial And Aerial Locomotion
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When this de- viation has been effected, and the needle has become stationary in its new position, it is only necessary to produce tetanus in the muscle, and immediately the needle retrogrades towards zero. This is what Du Bois Reymond calls the negative varia- tion of the muscular current. The same phenomenon is observed in the voluntary contraction of the muscles.
The interpretation of the negative variation is very im- portant. Du Bois Reymond having remarked, that for a single muscular shoc...k no defl.ection of the needle from zero is obtained, concluded that this is on account of the short dura- tion of the electrical disturbance accompanying a shock. In tetanus, on the contrary, a series of modifications in the electrical condition of the muscle correspond to the series of shocks produced — their accumulated influence deflects the magnetic needle.
This phenomenon is familiar to physicists. It is known that the needle of a galvanometer subjected to a frequently- interrupted current, takes a fixed nosition intermediate be- OP ELECTRICITY IN ANIMALS.
What to read after Animal Mechanism: a Treatise On Terrestrial And Aerial Locomotion?
You can find similar books in the "Read Also" column, or choose other free books by Marey, Etienne-Jules, 1830-1904 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
When this de- viation has been effected, and the needle has become stationary in its new position, it is only necessary to produce tetanus in the muscle, and immediately the needle retrogrades towards zero. This is what Du Bois Reymond calls the negative varia- tion of the muscular current. The same phenomenon is observed in the voluntary contraction of the muscles.
The interpretation of the negative variation is very im- portant. Du Bois Reymond having remarked, that for a single muscular shoc...k no defl.ection of the needle from zero is obtained, concluded that this is on account of the short dura- tion of the electrical disturbance accompanying a shock. In tetanus, on the contrary, a series of modifications in the electrical condition of the muscle correspond to the series of shocks produced — their accumulated influence deflects the magnetic needle.
This phenomenon is familiar to physicists. It is known that the needle of a galvanometer subjected to a frequently- interrupted current, takes a fixed nosition intermediate be- OP ELECTRICITY IN ANIMALS.
What to read after Animal Mechanism: a Treatise On Terrestrial And Aerial Locomotion?
You can find similar books in the "Read Also" column, or choose other free books by Marey, Etienne-Jules, 1830-1904 to read onlineMoreLess
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