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Protection
The chorionic membrane is the outer sac which surrounds the developing fetus
The Chorion is one of the membranes that exists during pregnancy between the developing fetus and it's mother. It allows the transfer of nutrients from the maternal blood to the fetal blood.
the 21st week
Fetus zygote is not the term to use. A zygote is a fertilized egg. An embryo is a developing baby. A fetus is a baby before it is born.
Protection
The chorionic membrane is the outer sac which surrounds the developing fetus
A cesarean is performed through using surgical tools to reach and deliver the fetus, if the fetus can not be accessed through the vagina.
Protection
Protection
The fertilized egg (which develops into a baby eventually) implants itself into the uterine wall/lining. The lining surrounds the egg as it matures and develops into a fetus and a placenta and amniotic sac surrounds the fetus eventually to nourish it.
amniotic sac
What fetal surgical technique is used depends on the specific condition of the fetus and its severity.
There are two terms that are puncturing of the abdominal cavity to remove fluid, paracentesis and abdominocentesis. Of these, paracentesis is more commonly used. It can be used to remove excess fluid from the abdomen. This excess fluid is called ascites. Performed usually with ultrasound and local anaesthetic, and often the fluid drained off is sent to a laboratory for testing. There are also specialized terms used if you are talking about draining specific areas, such as culdocentesis. Celiocentesis is the term used in veterinary medicine for this procedure. Abdominocentesis Paracentesis (para = beside + centesis = puncture) is also known as peritoneocentesis and laparocentesis. The abdominal wall is punctured and fluid is removed. It is used to relieve the pressure of ascites, to diagnose infections or cancer, and to confirm free blood in the abdominal cavity. Abdominocentesis (abdomin = belly + centesis = puncture) is also known as paracentesis, peritoneocentesis and laparocentesis. The abdominal wall (peritoneal cavity) is punctured by a needle and peritoneal fluid is withdrawn. This can be used to relieve abdominal pressure from ascites, diagnose infectious agents, cancer or free blood in the peritoneal space.
The amniotic sac forms during the embryonic stage of development, around week 2 after fertilization. It is a protective membrane filled with amniotic fluid that surrounds and cushions the developing embryo/fetus in the uterus.
The placenta is the nourishing membrane around a fetus that grows from the inside of the mom's uterus. Your answer is, ". . . the mom . . ."
amniotic sack