During pregnancy the uterine wall is stretched as the embryo grows. There are hormones affecting the smooth muscle in the myometrium, some causing contraction while others causing relaxation. During pregnancy, these hormones favor relaxation so that childbirth does not occur. Which of the following hormones is responsible for tipping the scales toward contraction, resulting in childbirth? O prolactin O maternal oxytocin O fetal oxytocin O estrogen O progesterone
During pregnancy the uterine wall is stretched as the embryo grows. There are hormones affecting the smooth muscle in the myometrium, some causing contraction while others causing relaxation. During pregnancy, these hormones favor relaxation so that childbirth does not occur. Which of the following hormones is responsible for tipping the scales toward contraction, resulting in childbirth? O prolactin O maternal oxytocin O fetal oxytocin O estrogen O progesterone
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:During pregnancy the uterine wall is stretched as the embryo grows.
There are hormones affecting the smooth muscle in the myometrium,
some causing contraction while others causing relaxation. During
pregnancy, these hormones favor relaxation so that childbirth does not
occur. Which of the following hormones is responsible for tipping the
scales toward contraction, resulting in childbirth?
O prolactin
O maternal nxytocin
O fetal oxytocin
O estrogen
O progesterone
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