A System of midwifery : including the diseases of pregnancy and the puerperal state . tions of Groodsir on this point,which are of the greatest possible interest, are corroborative of the \ ien -of Reid. These will be noticed when we come to speak of the nutritionof the foetus. The formation of the placenta commences in the latter part of the id month, and within a few weeks it acquires its essential charac-teristics. Small bloodvessels, for the special nourishment of the organ, from the uterus: butneither nerves nor lymphatics have beeyet. satisfactorily traced. It is proper t*> add, that
A System of midwifery : including the diseases of pregnancy and the puerperal state . tions of Groodsir on this point,which are of the greatest possible interest, are corroborative of the \ ien -of Reid. These will be noticed when we come to speak of the nutritionof the foetus. The formation of the placenta commences in the latter part of the id month, and within a few weeks it acquires its essential charac-teristics. Small bloodvessels, for the special nourishment of the organ, from the uterus: butneither nerves nor lymphatics have beeyet. satisfactorily traced. It is proper t*> add, that although the view which has been given of the BtniCture of the placenta is that almostuniversally entertained, some physiologists have denied the existence of a Binus system. The names of Velpeau, Radford, Etamsbotham,and Madge may be mentioned as holding more or Less confidently the latter new; but of late the contribution in refutation of the llunterian theory which has attracted most attention i< the Essay which Hicks presented to the Obstetrical Society in Ultimate foetal villus, highly magnified. L20 DEVELOPMENT OF THE EMBRYO AND FOETUS. [CHAP. CHAPTEE VII. DEVELOPMENT OF THE EMBRYO AND FCETUS. DEMONSTRATION OF EMBRYONIC STRUCTURES—CHARACTERISTICS AND DEVELOP-MENT OF THE FOETUS AT THE TERMINATION OF EACH MONTH OF PREGNANCY,FROM THE THIRD ONWARDS—DIMENSIONS OF MATURE CHILDREN—OF THEPRESENTATION AND ATTITUDE OF THE CHILD IN THE WOMB—CAUSES OFCRANIAL PRESENTATION: THEORIES OF PHYSICAL GRAVITATION, VOLI-TION, AND REFLEX ACTION—THE FCETAL CRANIUM : SUTURES : FONTA-XELLES : DIAMETERS—DEFINITION OF THE TERM VERTEX—FUNCTIONS OFTHE FCETUS : CIRCULATION: RESPIRATION: NUTRITION: SECRETION. The term Foetus is, according to usage, not applicable to the productof conception, until the termination of the third month of then it is termed the Embryo. A study of the formation of thevarious embryonic structures is a subject which, in so far
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectobstetrics, bookyear1
