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प्रश्न
When and where do chorionic villi appear in humans?
उत्तर
Chorionic villi are finger-like projections that arise from the trophoblast layer that develops in the zygote after it has undergone implantation.
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संबंधित प्रश्न
Comment on the role of placenta as an endocrine gland.
State the Function of Chorionic Villi
Gonads develop from embryonic ______.
Urine test during pregnancy determines the presence of ______.
In the event of pregnancy, the corpus luteum persists under the influence of ______.
The early stage human embryo distinctly possesses ______.
Relaxin is the hormone secreted by the placenta.
Which of the following is not a function of the placenta?
Read the following and answer from given below:
Cleavage is the series of rapid mitotic divisions in the zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. An embryo with 64 blastomeres is known as a blastocyst and has a blastocoel cavity. Blastocyst gets implanted in the uterine wall and leads to pregnancy.
At which stage of embryonic development does trophectoderm develop?
Except endocrine function, what are the other functions of placenta.
