Which hormone is not produced by the placenta?

Prepare for the Antepartum and Intrapartum Period Obstetrics OB Test. Dive into comprehensive multiple-choice questions and detailed explanations. Ready yourself for success!

Multiple Choice

Which hormone is not produced by the placenta?

Explanation:
Testosterone is not produced by the placenta. During pregnancy, the placenta functions as an endocrine organ that makes estrogen (primarily estriol) and progesterone to support the pregnancy, and it also secretes human chorionic gonadotropin to maintain the corpus luteum early on. Estrogen and progesterone production by the placenta comes from cholesterol through placental enzymes, while hCG is produced by placental trophoblasts. Testosterone, however, is mainly produced by the fetal testes (and to some extent fetal adrenals), not by the placenta.

Testosterone is not produced by the placenta. During pregnancy, the placenta functions as an endocrine organ that makes estrogen (primarily estriol) and progesterone to support the pregnancy, and it also secretes human chorionic gonadotropin to maintain the corpus luteum early on. Estrogen and progesterone production by the placenta comes from cholesterol through placental enzymes, while hCG is produced by placental trophoblasts. Testosterone, however, is mainly produced by the fetal testes (and to some extent fetal adrenals), not by the placenta.

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