The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . s projecting in an upwarddirection towards the corpus Arantii (r/). In such cases, those PHYSIOLOGY OF THE CIRCULATION. 211 portions of the valve which occur between the thickened bandsproceeding from the marginal one, are exceedingly thin, and insome diseased conditions altogether awanting (r), so that the segmentvery much resembles one of the segments of the
The physiology of the circulation in plants : in the lower animals, and in man : being a course of lectures delivered at surgeons' hall to the president, fellows, etc of the Royal college of surgeons of Edinburgh, in the summer of 1872 . s projecting in an upwarddirection towards the corpus Arantii (r/). In such cases, those PHYSIOLOGY OF THE CIRCULATION. 211 portions of the valve which occur between the thickened bandsproceeding from the marginal one, are exceedingly thin, and insome diseased conditions altogether awanting (r), so that the segmentvery much resembles one of the segments of the mitral or tricus-pid valve, with its chordae tendinere. That there is an analogybetween the semilunar and the mitral and tricuspid valves, andthat the tendinous chords are a further development, seems pro-bable from the fact, that in the bulbus arteriosus of certain fishes,as the gray and basking sharks, lepidosteus, etc., the semilunar valvesare furnished with what may be regarded as rudimentary chordaetendinese (Figs. 137 and 138, b) ; the auriculo-ventricular valves offishes, which have hitherto been regarded as semilunar, exhibitingtendinous chords in various stages of development (Fig. 136, c). Fig. 136. Fig. 137. Fig.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectblo, booksubjectblood
