Question

question 34
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where does the embryo implant for placenta previa to occur?
internal opening of the cervix
uterine tube
posterior wall of the uterus
pouch of douglas

Explanation:

Placenta previa occurs when the embryo implants near or over the internal opening of the cervix. The uterine tube is where fertilization typically occurs, not implantation for placenta previa. The posterior wall of the uterus is a normal site for embryo implantation in a non - placenta previa situation. The Pouch of Douglas is a peritoneal recess and not a site for normal embryo implantation.

Answer:

Internal opening of the cervix