I would think that "water breaking" would fall into that category.
Often in medicine it is referred to as 'Rupture of membranes' or ROM. If it is done by the doctor or midwife rather than Spontaneously (SROM), it is called artificial rupture of membranes or AROM.
It can be either. Sometimes they are in their own individual sac, and in other instances they share one amniotic sac.
Grasshoppers do not have an amniotic sac. Animals with amniotic sacs are mammals and birds that have a sac for the fetus to grow and gain nourishment from.
The protective sac around the embryo or fetus is the amniotic sac.
When the amniotic sac ruptures the amniotic fluid begins to trickle out of the uterus and vagina. For some women, it can actually gush out in a stream.The rupturing of the amniotic sac, which surrounds and protects the baby, is commonly referred to as the "water breaking."The combination of regular contractions and cervical change indicates the first phase of labor is starting.Reviewed ByReview Date: 09/16/2008Dan Sacks MD, FACOG, Obstetrics & Gynecology in Private Practice, West Palm Beach, FL. Review provided by VeriMed Healthcare Network.
Amniotic sac and fluid has a protective functions for the fetus. This sac separates the fetus from the mothers tissue.
its amniotic sac filled with amniotic fluid
The amniotic sac and amniotic fluid inside the womb.
The thin tissue that creates the walls of the amniotic sac.
birds
no
It is the amniotic fluid that protects the baby, when the mother goes into labour its the sac that breaks( with the amniotic fluid inside ).
The amniotic sac is what protects the baby, and the amniotic fluid is what the fluid inside the sac that the baby grows in.