Factors which help in descent of presenting pa during labour are all except: (A) Uterine contraction and retraction, (B) Straightening of the fetal axis, (C) Bearing down effos, (D) Resistance from the pelvic floor
Answer is D. Factors facilitating descent are Uterine contraction and retraction Bearing down effos Straightening of the fetal ovoid specially after rupture of membranes