What are the functions of the placenta?
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Placenta is essential but disposable temporary organ that cushioned the fetus.

After implantation the endometrium helps to form the placenta. The placenta provides nourishment to the developing fetus, removes fetal metabolic wastes, and produces the hormones of pregnancy.
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Placenta is a EPHEMERAL temporary endocrine gland that produces hormones hCG (Human chronic gonadotropin) present in the urine of female (confirmatory test for pregnancy) and also sustain pregnancy.

found only in eutherian mammals

organ composing of cells derived from two different organisms; the foetus (foetal membrane - chorion and amnion) and the mother

human placenta distinction; metadiscoidal, haemochorial and deciduate

many teratogens, disease causing virus and antibody IgG (transplacental) can cross placental barrier

functions; Nutritive, Digestive, Respiratory, Excretory, Storage organ(store glycogen before liver is formed), Barrier

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