. General surgical pathology and therapeutics, in fifty lectures : a textbook for students and physicians. (Figs. 28 and 29). It has been established, by the investigations of 0. Weber, thatthe vessels of the thrombus communicate partly with the calibre ofthe thrombosed vessel, partly with its vasa vasorum. The process of healing in transversely-divided veins appears atthe first glance to be much simpler than in the arteries; even in thelarge veins of the extremities, the divided ends fall together, and ap-pear to heal at once, as soon as the blood has been obstructed at thenext valve above ;
. General surgical pathology and therapeutics, in fifty lectures : a textbook for students and physicians. (Figs. 28 and 29). It has been established, by the investigations of 0. Weber, thatthe vessels of the thrombus communicate partly with the calibre ofthe thrombosed vessel, partly with its vasa vasorum. The process of healing in transversely-divided veins appears atthe first glance to be much simpler than in the arteries; even in thelarge veins of the extremities, the divided ends fall together, and ap-pear to heal at once, as soon as the blood has been obstructed at thenext valve above ; at these valves clots form, and they are often muchlarger than is desirable; this formation of clots extending toward theheart will hereafter occupy our earnest attention. But I have of late ^0C \=l- Transverse section of a fresh 300 diameters. FORMATION OF THROMBUS. Ill observed that the tunica intima of the divided vein does not by anymeans so fold together and adhere, but that here also there is a clot,although a small one, which is organized like the arterial thrombus. Pig. Transverse section of a thrombus six days old. 300 diameters. Fig. 27. m ju w ml ti mum Ten-day-old thrombus, a, Organized thrombus; 5, Tunica intima; c, Tunica muscularis; <£,Tunica adventitia. 300 diameters. 112 SIMPLE INCISED WOUNDS OF THE SOFT PARTS. If you draw conclusions from these preparations, presented in sucha fragmentary way, it appears that in the clotted blood there is a cel-lular infiltration, which here leads to development of connective tissue;in short, that the thrombus becomes organized. The thrombus is nota permanent tissue, but gradually disappears again, or, at least, is re-duced to a minimum, a fate which it shares with many new formationsresulting from inflammation.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjecttherapeutics, bookyea
