The histology and histochemistry of man : a treatise on the elements of composition and structure of the human body / by Heinrich Frey ... Translated from the fourth German edition, by Arthur E.J. Barker ... and revised by the author. With six hundred and eight engravings on wood.
- Frey, Heinrich, 1822-1890.
- Date:
- 1874
Licence: Public Domain Mark
Credit: The histology and histochemistry of man : a treatise on the elements of composition and structure of the human body / by Heinrich Frey ... Translated from the fourth German edition, by Arthur E.J. Barker ... and revised by the author. With six hundred and eight engravings on wood. Source: Wellcome Collection.
Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.
148/698 (page 136)
![glands they were met with, the possibility of their origin in these so- called glands was recognised even years ago. This view received sup- port, also, from the discovery that the contents of the latter is the same as that of the lymphatic vessels. In the mucous membrane of the digestive tract there occur also small lymphatic glands, known as 11 Payer's patches,” and hence the origin of the few isolated lymph-corpuscles found in the smaller branches of the chyle vessels, leaving the intestinal tube. And, in fact, the cells of lymph and chyle are the corpuscles of these organs which have penetrated into the hollow interstices of the ljmph- nJdes, and have been carried off by the stream of fluids. These points if borne in mind will render the description of the lymphatic glands more easy of comprehension, in discussing which we shall have to consider the origin of the cells in question in the latter organs. How far these cells are capable of undergoing multiplication in the lymph and chyle streams, is also a matter worthy of our consideration. At present we are in possession of no reliable facts bearing upon this point. §85. However important it might be to determine the amount of these fluids in the body, even approximately, science possesses at present no certain data to go upon in regard to their quantitative analysis, h e can on y, so far, conjecture that the amount of both must be very considerable, and that, as through the lacteal system, so also through that of the lymphatics, an extensive intermediate circulation exists. If we now turn to the chemical constitution of these two fluids, we have at present but very insufficient analyses to go upon. _ Hitherto it lias not been possible to investigate chyle and lymph m a manner adequate to the requirements of histology. We cannot yet even accurately determine the composition of the moist lymph-cell. All the rough analyses, too, which have hitherto been made, display enormous ditferences owing to the difficulty of obtaining large quantities of lymph and chyle in a pure state, and to the changeable nature of both liquids. . 1 As to the cells, they consist of various modifications of albuminous compounds, the enveloping layer showing diflerent reactions to those o the nucleus and protoplasm of the body of the cell, which encloses molecules of a coagulated albuminoid, and of fats : it is soluble, name }, in dilute acids while the nucleus is not. ., . .c Cph“s a more or less clear, alkaline, watery iquid, whose spec, c J4y is not yet known. In it may be found, agam, those protem sub- stances which are likewise present in the plasma ot the Wood, nainelj, ae two constituents of fibrin, with albumen and its modifications 11 e former |ve rise here, also, to the coagulation of the flu,d when coUected in^a vessel. And yet a difference exists between the flbrm of lymph a that of blood in the manner in which it solidities. Lymph, name y, not nsuallv coa-mlate in the corpse, but subsequently on being if ■ i Sr 1 fit Siebo^dthe form 0 the vessel in which it solidifies, but is liaturS]y^ueh° smaller on account of the much smaller number of cells](https://iiif.wellcomecollection.org/image/b21310178_0148.jp2/full/800%2C/0/default.jpg)
