EMBRYOLOGY
FERTILISATION EARLY DEVELOPMENT OF EMBRYO AND IMPLANTATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The hormone hCG is secreted from which structure?
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morula
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zygote
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trophoblast
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blastocyst
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Explanation:
Detailed explanation-1: -Human chorionic gonadotropin is a hormone produced primarily by syncytiotrophoblastic cells of the placenta during pregnancy.
Detailed explanation-2: -This hormone is secreted by the placenta in pregnant women. Human chorionic gonadotrophin (hCG) is a hormone produced by the cells that surround the growing human embryo that go on to form the placenta (called trophoblasts).
Detailed explanation-3: -hCG is secreted by the syncytiotrophoblast which originates from fused and differentiated cytotrophoblast cells [3, 4]. For a long time, the main known role of hCG was the promotion of progesterone secretion by the corpus luteum in early pregnancy, acting via the hCG/LH (luteinizing hormone) receptor.
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