Umbilical cord diameter. This diameter decreases rapidly within the placenta. The fully patent umbilical artery has two main layers: an outer layer consisting of circularly arranged smooth muscle cells and an inner layer which shows rather irregularly and loosely arranged cells embedded in abundant ground substance staining metachromatic. The smooth muscle cells of the layer are rather poorly differentiated, contain only a few tiny myofilaments and are thereby unlikely to contribute actively to the process of post-natal closure. The umbilical cord contains Wharton's jelly, a gelatinous substance made largely from mucopolysaccharides which protects the blood vessels inside. It contains one vein, which
Confraternities of the Cord Confraternities of the Cord Confraternities of the Cord are pious associations of the faithful, the members of which wear a cord or cincture in honour of a saint, to keep in mind some special grace or favour which they hope to obtain through his intercession. In the early Church virgins wore a cincture as a sign and emblem of purity, and hence it has always been considered a symbol of chastity as well as of mortification and humility. The wearing of a cord or cincture in honour of a saint is of very ancient origin, and we find the first