Parturition

Which stage of labour has regular uterine contractions, removal of cervical mucous plus and dilation of cervix?

Which stage of labour involves the complete delivery of foetus, rupture of membranes and abdominal contractions?

Which stage of labour involves delivery of the placenta?

Creation of a birth canal by myometrial cells not returning to their original length after contraction is known as Brachystasis.

Junction between the upper and lower segments during uterine contraction is called the retraction ring.

During cervical remodelling what stage involves a gradual change in the intracellular matrix?

During cervical remodelling what stage occurs rapidly in the days before birth with increased vasularization, influx of monocytes, raised levels of IL6 and IL8 and increased high molecular weight forms of Hyaluronan?

During cervical remodelling what stage has increases in viscoelastibility, tissue distensibility, water content, disorganization of collagen matrix and matricmetaloproteinases.

Oxytocin lowers the excitation threshold of muscle cells.

Prostaglandins stimulate liberation of Ca2+

Oestrogen induces liberation of PhospholipaseA2 from lysosomes.