The matron's manual of midwifery, and the diseases of women during pregnancy and in childbed .. . desmaller. They do not disappear till sometime afterbirth, and in very young children the brain may befelt, and seen to work, at the anterior however, the bones come close together,and aro joined by a curious kind of dovetailing. Thetwo frontal bones however, completely coalesce, andIbrm but one, in the adult. Sometimes the bones will be very perfectly formed,and the fontanelles nearly filled up, before birth, the head cannot be crushed much smaller, andso the labor b
The matron's manual of midwifery, and the diseases of women during pregnancy and in childbed .. . desmaller. They do not disappear till sometime afterbirth, and in very young children the brain may befelt, and seen to work, at the anterior however, the bones come close together,and aro joined by a curious kind of dovetailing. Thetwo frontal bones however, completely coalesce, andIbrm but one, in the adult. Sometimes the bones will be very perfectly formed,and the fontanelles nearly filled up, before birth, the head cannot be crushed much smaller, andso the labor becomes both painful and difficult. Thisis usually called an ossified, or solid head. Diameters of the Head.—The diameters of thehead are the distances between its most prominentpoints. They are necessary to be known before wecan judge as to the possibility of its passing the straitsof the Pelvis, in the various positions. Generally there are reckoned te?i diameters, andthey are represented in the following Plate:— FORM AND SIZE OF THE FOSTUS. PLATE XXV. Diaineters of the Head. 151 Fig. 1. The Occipito Mental, or from the back of the head tothe chin, M. O, Fi^. 1, five inches. 2. The Mento Bregmatic, or from the chin to tlie anteriorfoiitanelle at the top of the head, M. O, Fig. 1, four inches. 3. The Occipito Frontal, or from the back of the head tothe top of the forehead, O, F, Fig. I, four inches. 4. The Trachelo Occipital, or from the throat to the backof the head, T, O, Fig. 1, four inches. 5. The Sub Occipito Bregmatic, or from the nape of theneck to the top of tiie head, S, B, Fig. 1, three inches and a half. 6. The Trachelo Bregmatic, or from the top of the throat tothe top of the head, T, B, Fig. 1, about three inches and a half. 7. The Trachelo Frontal, or from the top of the throat tothe top of the forehead, T, F, Fig. 1, about three inches. 8. The Sub Occipito Frontal, or from the nape of the neckto the top of the forehead, S, F, Fig. 1, about three inches. 9
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Keywords: ., bookcentury1800, bookdecade1840, bookidmat, booksubjectobstetrics
