Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . ricle hypertrophies, and thereby further raises the pressure, atheromamay be widely distributed in the pulmonary artery and its what raises the blood-pressure of the left side is not alwayseasily determined. The method by which it is raised is, of course, morereadily comprehended. Thus, if it be assumed that the heart increases Fig. 262.—.Vrtery, Early Stage of .\ especially for the demonstration of the elastica; Weigerts method, followed by Ma
Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . ricle hypertrophies, and thereby further raises the pressure, atheromamay be widely distributed in the pulmonary artery and its what raises the blood-pressure of the left side is not alwayseasily determined. The method by which it is raised is, of course, morereadily comprehended. Thus, if it be assumed that the heart increases Fig. 262.—.Vrtery, Early Stage of .\ especially for the demonstration of the elastica; Weigerts method, followed by Mayers carmalum andpicroindulin. .1. Broken and curled elastica which at places shows fraumcntation. B. Fibrohyaline thickeningof the intima: within this stratum can be seen short crinkled fragments of elastica that have been regardedby some authors as efforts at regeneration. Fragmentation of the clastic lamina lis particularly markedjust above the leader from letter B. The media in this vessel appears much broader than normal, but itis most difficult, if not impossible, to say that it is hypx^ Fig. 263.—.\rtery. .\ especially for the demonstration of the elastica;Weigerts methixl. followcil l>y carmalum andpicroindulin. .-1. Fragmented and separated elas-tica. B. Fragmentefl and curled |clastica; notethe swelling of the isolate*] fragment and the curledend at B. C. Unusuiilly crinkled elastica resultingfrom vielding and recoil due to solution in con-tinuity at A and B. D. From just below the leaderfrom D to upper part of drawing there is no breakin the elastica. It will be ot»cr\eut absent from thearteries from which Figs, j^i and jj4 were made. V il} •!:
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