. An American text-book of obstetrics. For practitioners and students. Fig. 96—A, section of heart of human embryo of 10 mm. (His): a, septum spurium; 6, interauricularseptum; c, mouth of sinus reuniens; d, right auricle; e, left auricle ; /, auricular canal; g, right ven-tricle ; ft, interventricular septum ; i, left ventricle. B. section of heart of human embryo of about thefifth week (His): a, septum spurium; b, auricular septum: c, opening of sinus reuniens (leader passesthrough foramen ovale); d, right atrium; e, left atrium ; /, septum intermedium; g, right ventricle; septu
. An American text-book of obstetrics. For practitioners and students. Fig. 96—A, section of heart of human embryo of 10 mm. (His): a, septum spurium; 6, interauricularseptum; c, mouth of sinus reuniens; d, right auricle; e, left auricle ; /, auricular canal; g, right ven-tricle ; ft, interventricular septum ; i, left ventricle. B. section of heart of human embryo of about thefifth week (His): a, septum spurium; b, auricular septum: c, opening of sinus reuniens (leader passesthrough foramen ovale); d, right atrium; e, left atrium ; /, septum intermedium; g, right ventricle; septum; i, left ventricle. spicuous lateral dilatations which assume a position above and behind the grow-ing arterial chamber. These dilatations are the auricular appendages (Fig. 95),which for some time are the most conspicuous parts of the auricles. At this PHYSIOLOGY OF PREGNANCY. 107 time the auricular and ventricular portions of the heart are imperfectly sepa-rated by a marked constriction, the canalis auricularis. During the fourth week the conversion of the sin
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
