The interaction between cervix and corpus uteri in the generation of intra-amniotic pressure in labour.

Theoretically, the response of the cervix to myometrial activity should affect the intra-amniotic pressure waveform. Clinical assessment of cervical response, in 80 induced labours, has been correlated with various waveform parameters. More abrupt and more rapid rises in intra-amniotic pressure are associated with the non-responding cervix. The clinical implications are discussed.