. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 356 STOMACH AND INTESTINE. compound membrane forming the diffusive septum in their experiments, would propor- tionately favour the resulting transit of the separated fluids. And since the continuous movement of the chyle is probably aided by forces independent of any mere act of dif- fusion, the force of suction thus added must itself conditionate a more active transit than that which they witnessed in the inert en- dosmometer. On the other hand, there are good reasons for regarding the reception of fatty matters as a mu
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 356 STOMACH AND INTESTINE. compound membrane forming the diffusive septum in their experiments, would propor- tionately favour the resulting transit of the separated fluids. And since the continuous movement of the chyle is probably aided by forces independent of any mere act of dif- fusion, the force of suction thus added must itself conditionate a more active transit than that which they witnessed in the inert en- dosmometer. On the other hand, there are good reasons for regarding the reception of fatty matters as a much more complex phenomenon, and the result of what we may venture to call more vital processes. For the way in which ether and other solvents act upon the chyle appears to prove, that the fatty contents of its molecules are still oily; and not saponified, like such diffused fluids. And while the position of the capillary plexus, and the rapid- ity and quantity of its stream, render it pro- bable that any merely diffusive action would disproportionately affect the blood—which by the way is often more alkaline than the chyle —a chemical and physical comparison of these two fluids would seem to show that the re- verse is actually the case : that a larger quan- tity of fat is taken up by the lacteals than by the blood-vessels. This view is also con- firmed by the results of violent inflamma- tion*, or of great interference with the blood- vessels f : — changes, neither of which would probably have much direct effect on the physical action of an independent system of tubes, but which are nevertheless alleged entirely to pre- vent the formation of chyle. In any case, it would seem that there are strict limits to the quantity of fatty matter which can be absorbed. Hence when the amount of fat present in any particular region at all exceeds what its villi can take up, it is passed on to other portions of intestine ; foiling absorption by which, it is ultimately discharged unchan
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