 When doing a cesarian for an impacted fetus, what might a doctor see?
She comes with a vulva, a pre-cut incision in her abdomen and, most importantly, a uterus containing a foetal head that should, in the normal way of things, be free to emerge between her legs. The standard response is to perform a caesarean section. One audit has suggested that roughly 8,000 babies get stuck and have to be delivered by caesarean at a stage when their mothers are fully dilated. In a protracted birth that's destined to end with a caesarean, the longer the labour is allowed to go on before the obstetrician decides to intervene, the greater the likelihood that the baby's head will become impacted. When obstetricians doing planned caesareans slice open a mother's womb, what they usually see is the baby's head.
 A shoulder
 An arm  A shoulder  The torso  A leg