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Czasopismo
2019 | 78 | 2 |
Tytuł artykułu

Observations of foetal heart veins draining directly into the left and right atria

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Evaluation of semiserial sections of 14 normal hearts from human foetuses of gestational age 25–33 weeks showed that all of these hearts contained thin veins draining directly into the atria (maximum, 10 veins per heart). Of the 75 veins in these 14 hearts, 55 emptied into the right atrium and 20 into the left atrium. These veins were not accompanied by nerves, in contrast to tributaries of the great cardiac vein, and were negative for both smooth muscle actin (SMA) and CD34. However, the epithelium and venous wall of the anterior cardiac vein, the thickest of the direct draining veins, were strongly positive for SMA and CD34, respectively. In general, developing fibres in the vascular wall were positive for CD34, while the endothelium of the arteries and veins was strongly positive for the present DAKO antibody of SMA. The small cardiac vein, a thin but permanent tributary of the terminal portion of the great cardiac vein, was also positive for SMA and CD34. A few S100 protein-positive nerves were observed along both the anterior and small cardiac veins, but no nerves accompanied the direct drainage veins. These findings suggested that the latter did not develop from the early epicardiac vascular plexus but from a gulfing of the intratrabecular space or sinus of the atria. However, the immunoreactivity of the anterior cardiac vein suggests that it originated from the vascular plexus, similar to tributaries of the great cardiac vein. (Folia Morphol 2019; 78, 2: 283–289)
Słowa kluczowe
EN
Wydawca
-
Czasopismo
Rocznik
Tom
78
Numer
2
Opis fizyczny
p.283–289,fig.,ref.
Twórcy
autor
  • Department of Anatomy, Chonbuk National University Medical School, 20 Geunji-ro, Deokjin-gu, Jeonju, 54907, Republic of Korea
autor
  • Department of Anatomy, Chonbuk National University Medical School, 20 Geunji-ro, Deokjin-gu, Jeonju, 54907, Republic of Korea
autor
  • Department of Anatomy, Chonbuk National University Medical School, 20 Geunji-ro, Deokjin-gu, Jeonju, 54907, Republic of Korea
autor
  • Department of Anatomy, Wuxi Medical School, Jiangnan University, Wuxi, China
autor
  • Division of Internal Medicine, Jikou-kai Clinic of Home Visits, Sapporo, Japan
autor
  • Department of Anatomy, Akita University School of Medicine, Akita, Japan
Bibliografia
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Bibliografia
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