A nurse's handbook of obstetrics . FLEXION AND EXTENSION. 95 the back of the head will, after external rotation, point to theleft side of the mother, as it did before labor Fig. 45-—Extension of the head in anterior presentations of the vertex. (Carrigues.) We have, then, to consider during labor in anterior positionsof the vertex ( L. O. A. and R. O. A.), Flexion, Rotation,Extension, and Restitution of the head, all accompanied by De-scent (Fig. 47). If, instead of being flexed, the head, in a vertex case, is ex-tended or tipped backward on the body of the child at the begin-ning of l


A nurse's handbook of obstetrics . FLEXION AND EXTENSION. 95 the back of the head will, after external rotation, point to theleft side of the mother, as it did before labor Fig. 45-—Extension of the head in anterior presentations of the vertex. (Carrigues.) We have, then, to consider during labor in anterior positionsof the vertex ( L. O. A. and R. O. A.), Flexion, Rotation,Extension, and Restitution of the head, all accompanied by De-scent (Fig. 47). If, instead of being flexed, the head, in a vertex case, is ex-tended or tipped backward on the body of the child at the begin-ning of labor, the case will become one of face is one of the most serious complications that can arise inconnection with labor, for if the face cannot be changed by thephysician into a vertex presentation, the child cannot be born,except in rare instances, without operative interference of onekind or another (Fig. 48). 96 A NURSES HANDBOOK OF OBSTETRICS. Brow presentations are those midway between face andvertex, and occur when the head is neither fully flexed nor fully


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