Factors which help in the descent of the presenting pa during labor are all except
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)
Uterine contraction and retraction
Straightening of the fetal axis
Bearing down effos
Resistance from the pelvic floor
General obstetrics