(a) How is placenta formed in the human female?
2 answer
(a) How is placenta formed in the human female?
(b) Name any two hormones which are secreted by it and are also present in a non-pregnant woman.
(a) After implantation, the chorionic villi that appear on trophoblast, interdigiate with the uterine tissue, jointly form placenta.
(b) Estrogen, progestogens.
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