North American Registry of Midwives (NARM) Practice Exam

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Prepare for the North American Registry of Midwives Exam. Utilize flashcards and multiple choice questions, each with hints and explanations. Get ready to excel!

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What is one of the roles of progesterone in pregnancy?

Promotes ovulation
Prepares the uterus for implantation
Stimulates breast milk production
Increases basal metabolic rate

The correct answer is: Prepares the uterus for implantation

Progesterone plays a crucial role in preparing the uterus for implantation, which is essential for the establishment and continuation of pregnancy. Following ovulation, progesterone is secreted primarily by the corpus luteum and later by the placenta as it develops. This hormone helps to thicken the endometrial lining, creating a suitable environment for a fertilized egg to implant. Additionally, progesterone inhibits uterine contractions, maintaining a stable environment for the embryo and preventing premature labor. This nurturing role of progesterone is vital for successful implantation and support of the developing fetus throughout the early stages of pregnancy. The roles of the other options are distinct: promoting ovulation pertains to estrogen, stimulating breast milk production is primarily influenced by prolactin, and increasing basal metabolic rate is more closely related to thyroid hormones.