Smallest diameter of p elvis is?
ANSWER: (A) Interspinous diameterREF: Clinical Obstetrics 10th edition by S. Gopalan, Sarala & Jain, Vanita Page 4, Manual of Obstetrics, 3e by Shirish N Daftary Page 11-12, Manual Of Obstetrics (2Nd Edition) by Daftary Page 16-18"Interspinous diameter (transverse diameter of midpelvis = 10 cm or somewhat more) is the smallest diameter of pelvis" REF: Williams's obstetric 22nd edition page 34Measurements of Pelvis AnterioposteriorObliqueTransverseInletTrue conjugate11 cm12 cm13 cmObstetric conjugate10.5 cmDiagonal conjugate12 cmMid pelvisPlane of greatest dimension12 cm12 cm12 cmPlane of least dimension10 cm10 cm10 cm(interspinous)Outlet13 cm12 cm11 cmShortest anteroposterior diameter of inlet of pelvis is obstetrical conjugateInterspinous diameter, 10 cm or somewhat more, is usually the smallest diameter of the pelvisPelvic inlet is an adequate size for a normal fetus if the diagonal conjugate is 12 cm or greater
Interspinous diameter
True conjugate
Diagonal conjugate
Intertuberous diameter
Fetal Skull and Maternal Pelvis