I have to assume that you are talking about after the head, in a normal human birth, completely leaves the womb and is in the birth canal, the rest of the birth happens very quickly unless there is a complication. Some people call it "catching the baby" because it come so quickly.
The birth canal is widest at the end where the baby comes out.
Vaginal
Halfway through the birth canal there are contraction that leads to the baby being pushed out.
The baby is delivered through the birth canal with the assistance of a doctor.
the birth canal
the umbilical has dropped down in front of the baby into the birth canal; the baby is too large to pass through the birth canal unaided; the baby shows signs of stress; the mother is too exhausted to push
It means that the baby is in position to be born-- and probably soon.
is the passageway for sperm,for blood during menstruation,and for the baby during birth.
It is the Vigina.
A birth suit is like when you were a baby. Completely naked!
Yes they can tell if you have ever given birth by the examination of the birth canal and internal tissue.
Because unless delivered by C-section the baby has to pass that way to get out of the uterus to get born.