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Temporal Relations between Splenic Formation, Cono‐Truncus Development, and Division of the A‐V Canal
Publication year - 1955
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1955.tb05348.x
Subject(s) - truncus , anatomy , truncus arteriosus , primordium , medicine , biology , tetralogy of fallot , heart disease , biochemistry , gene
Summary a) Early splenic primordia in six human embryos have been shown to be present in Horizons XV to XVII of Streeter , when the embryo has an estimated ovulation age of 31–36 days. b) The fusion of the atrio‐ventricular canal cushions occurs in the XVLth Horizon, while the complete separation of the cono‐truncus is accomplished about two days later, in the XVIIth Horizon ( Streeter , 1948). c) The importance of spiraling blood currents in the septation of the cono‐truncus has been brought out ( Bremer; Patten, Kramer & Barry; Romhányi; Kl. Goerttler ). d) The shape of the cono‐truncus as determining the spiralization of the blood of this part of the heart has been stressed ( Doerr ). e) The interrelationship between the cono‐truncus and the atrio‐ventricular canal in the form of a “conflict zone” is emphasized ( Doerr ).