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Show 204 in Hart défl'emnf Parts (ft/M Body. Ojibc particular Distribution of tbe Absorbent Vessels not exist : but mists of the absorbent vessels of the brain; not that they do not accus- there are such Variety of appearances in the brain, that persons could tomed to the injecting absorbents might mistake them. Mr. chson in liv- not find their branches, afterhe had tied up their trunks, in the neck ing animals. we The brain is a viscus which so soon becomes putrid, that for the cannot trust to the gradual extrication of vapour, as in other parts, discovering of these vessels; and they must also be then so tender, as every er part of the brain is, that they will hardly bear a column of quicksilv without presently bursting :--iu firmer brains, and on some more fortunate ~r'0"0 should I believe any vessel to be an absorbent which, comina from the brain did not terminate in the glands of the neck. From these g'jlands the (ice : seated absorbents of the head go into other glands, in the course of the internal jugular veins and carotid arteries; and, having been joined by those trom the outside of the head, they form larger and larger trunks, as they come nearer the angle between the jugular and subclavian veins, and are blended wtth the other absorbents of the neck. Haller, of occasion, it may prove otherwise-The circumstance urged by material. There there being no lymphatic glands within the cranium, is not THE ABSORBENTS OF THE FACE. are none on the legs or fore-arms, yet there are a vast number of absorb- rhese I have often seen, in great numbers, accompanying the external maxillary artery through all its branches, coming from the inner angle of ents. There are none on the outside of the cranium, above the mammil- lary processes, yet the absorbents are as evident and numerous as in any part of the body.--I shall relate what I know, and have seen, respecting these absorbents of the head. There is the appearance of absorbents on the surface of the brain, between the tunica arachnoides and pia mater. Ruysch was the first who observed this; he has given an engraving of them, inflated with air, and calls them mm psmdonnzp/Jaticrl. I have repeatedly injected them with quicksilver; but, as they appear to me too large, and to be destitutc of valves, the great characteristic of absorbent vessels, and as I have not traced them to the glands, I have not yet determined what they are. They may be absorbents without valves, as the fluids, coming from the brain, have the assistance of their own gravity in descending, and the valves would have been of no use, perhaps, in vessels not exposed to the contraction of surrounding muscles-"Phat the brain has absorbents, I am perfectly certain; for I have seen absorbent glands in theflu-amuz tra- roticum, which, from this situation, could not belong to any vessels but such as were coming down from the brain. The glands of the neck swell in some diseases of the brain: Ihave seen this particularly in scrophulous absccss of the brain; I found the glands of the neck swelled with achction of the brain, in the living body, and I found the abscess after death;* nor the eye, from the nose, and from the lips. Some of them pass through glands on the buccinator muscle; but the larger trunks commonly pass through glands situated on the basis of the lower jaw, near the anterior edge of the masseter muscle, and in the course of the trunk of the ex- ternal maXIllary artery. Haller, in speaking of the absorbents of the head, mentions those of the face: " Milii in facic, massctere musculo, paro- tide, margine nudo maxilla inferioris ctiarn in homine innotucrunt."- Those. from the nose accompany chiefly the internal maxillary artery, and pass through glands under the parotid, and in the course of the trunk of that artery. Those from the gums, alveolar proce s of the teeth, and tonsils, accompany the same artery; but after they pass the angle of the lower Jaw, Join frequently the external jugular vein, and pass through glands on the top of the shoulder. Those from the tongue, tonsil‘ and muscles of the os hyoides, also pass through the glands lying on the internal jugular vein, below the angle of the lowerjaw. Hallcr also has seen these. " Alii vc- niunt a musculis ossis hyoides et pharyngis ct linguae, et ex ipsa demum lingua; haze quidetn satis dudum a me visa, et a larynge deniquc." These glands I lately saw exceedingly enlarged in a woman, who caught a putrid sore throat the third week alter lying in, from going out too soon; she died in three days. I have seen similar tumors, in scarlet fevers, suppu- rate and discharge the most fetid pus I ever smelt. " Particularly in Mr. B. should THE |