<prompt> Intrauterine pressure is raised during labour toFirst stage - 40 to 50 mm HgSecond stage- 100 to 120 mm HgThird stage - 100 to 120 mm HgAll the above  <response>: Intrauterine pressure during labor: First stage - 40 to 50 mm Hg Second stage- 100 to 120 mm Hg Third stage - 100 to 120 mm Hg 