<prompt> Factors which help in the descent of the presenting pa during labor are all exceptUterine contraction and retractionStraightening of the fetal axisBearing down effosResistance from the pelvic floor  <response>: Factors which help in the descent The direct pressure of funds on breech during contractions The hydrostatic pressure of the amniotic fluid Extension and straightening of fetal body Abdominal muscle contractions during bearing down refer pgno:104 Sheila textbook of obstetrics 2 nd edition 