The Dublin practice of midwifery / by Henry Maunsell.

  • Henry Maunsell
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: The Dublin practice of midwifery / by Henry Maunsell. Source: Wellcome Collection.

    77/328 page 61
    the foetus is packed into tlie smallest possible space, its chin depressed upon the breast_, its legs flexed upon the thighs, and the latter upon the abdomen, and the arms crossed upon the chest, or placed T^ith the hands upon the sides of the face. The /ii//is is composed of three vessels, the two arteries just mentioned, which bring the impure blood to the placenta, and the umbilical vein, which carries it back from that organ to the body ; the vein is considerably larger than the arteries. None of these vessels send off any branches until they are entering the placenta, when the arteries anastomose by a cross branch. They do not, however, run a straight course, but are twisted spirally together, and also are tortuous, forming coils upon themselves. The substance of the cord consists of a cellular web, filled with a gelatinous matter, and covered firmly by the chorion and amnion. In this gelatinous tissue the vessels are imbedded, and thus very effectually preserved from mjury. Owing to this provision, knots are fre- quently formed upon the cord, without in the least interrupting the circulation. Besides the arteries and vein, the cord contains a rudiment of the urachus and the omphalo-mesenteric vessels and vitelline pedicle, structures which shall be sub- sequently alluded to. The existence of nerves and lymphatics in the funis has been denied by
    No text description is available for this image
    No text description is available for this image
    No text description is available for this image