Pattern. 1  the pattern will be compared to the name. * 2  is a wildcard that will match zero or more letters example: *oo* will match names which contain oo. _ 3  is a wildcard that will match exactly one letter example: __z will match names which have two letters and then a z.
Normally, the placenta is attached to the uterus above the cervix. In rare cases, the placenta forms low in the uterus and is partially or completely covering the cervix. When the placenta is blocking the cervix, it is called placenta previa. Placents posterior mean high risk in doctor's language Posterior means back.
1 A low-lying placenta is near the cervical opening but not covering it. 2  It will often move upward in the uterus as your due date approaches. 3  A partial placenta previa covers part of the cervical opening. 4  A total placenta previa covers and blocks the cervical opening.he fetus is attached to the placenta by the umbilical cord. Through the cord, the fetus receives nourishment and oxygen and expels waste. On one side of the placenta, the mother's blood circulates, and on the other side, fetal blood circulates.