Roles of the Pectoral Musculoskeletal Framework and the Pericardium in Cardiac Function in Carp

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In situ perfused hearts of carp were used to investigate the roles of the pectoral musculoskeletal framework covering the pericardial cavity, and the pericardium in cardiac performance. Removing the pectoral musculoskeletal framework decreased stroke volume and cardiac output toabout 70% and 67% of the initial condition, respectively, and raised atrial filling pressure from -2.9±0.48 mmH2O to above ambient levels. Cutting the pericardium, however, caused no further significant changes in cardiac parameters. Thus, the pectoral musculoskeletal framework of carp is a significant component of the atrial filling via the vis-à-fronte mechanism. On the other hand, the ability of the heart to under-take pressure-related work was significantly enhanced by both removing the pectoral musculoskeletal framework and cutting the pericardium. These results show that both the pectoral musculoskeletal framework and the pericardium prevent the cardiac chambers from over-distention and excessive pressure-related work.

収録刊行物

  • Fisheries science : FS  

    Fisheries science : FS 62(5), 715-718, 1996 

    公益社団法人 日本水産学会

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各種コード

  • NII論文ID(NAID)
    10004867322
  • NII書誌ID(NCID)
    AA10993718
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09199268
  • NDL 記事登録ID
    4060750
  • NDL 雑誌分類
    ZR26(科学技術--農林水産--水産)
  • NDL 請求記号
    Z54-H592
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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