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(a) When and how does placenta develop in human females? (b) How is the placenta connected to the embryo? (c) Placenta acts as an endocrine gland. Explain |
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Answer» (a) Development of placenta takes place after implantation.
(b) The placenta is connected to the embryo through an umbilical cord. (c) The placenta can also act as an endocrine gland but only during pregnancy and produces some hormones like human chorionic gonadotropin (hCG), human placental lactogen (hPL), estrogen, progesterone, etc |
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