Manual of the physiology of man, or, A concise description of the phenomena of his organization / by Ph. Hutin ; translated from the French, with notes, by Joseph Togno.

  • Hutin, Philippe, 1802-1880.
Date:
1828
Catalogue details

Licence: Public Domain Mark

Credit: Manual of the physiology of man, or, A concise description of the phenomena of his organization / by Ph. Hutin ; translated from the French, with notes, by Joseph Togno. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    apparatus of this function is more complicated, and in the same degree as the muscular system is more developed, there are added hard parts, which form the frame of the body and the levers of the limbs. In the insects, the hard parts are external, form- ing a part of its covering; they are composed of parts moveable on each other: the muscular fibres line their interior and communicate to them motions. In the immense class of vertebrated animals, on the contrary, these hard parts are internal, and con- stitute peculiar organs, the bones, about which the muscles are attached. 4. Expressions. This faculty, possessed by ani mated beings of communicating their sensations, differs very much in different animals; it is not re- marked in those which are deprived of sentiments and volition. Next it develops itself, but it is on- ly appreciable to the eye; the passions which agi- tate the animal are then only discovered by the different changes which occur on his surface, con- stituting gestures. Lastly, the superior classes have besides a peculiar instrument—the larynx; placed along the respiratory passage; it produces a kind of expression which consists in sounds; voice and speech, are modifications peculiar to man. 5. Generation. In the inferior classes there are no particular organs for reproduction; thei|, some- times, as in the infusoria, the body may be divid- ed into several fragments, which constitute as many new individuals {fissiparous generation;) or by buds shooting on the surface of the animal, de- taching themselves from the parent to produce a new being, such are polypi, (gemmiparous external generation;) or lastly, as it is observed in acalephm, it is internally that the gemmae oviform are develop •