The hormone produced by the placenta that causes the pelvic ligaments and pubic symphysis to relax, widen, and become more flexible to ease birth passage is called:

The hormone produced by the placenta that causes the pelvic ligaments and pubic symphysis to relax, widen, and become more flexible to ease birth passage is called:



A) renin
B) relaxin
C) progesterone
D) chorion
E) gonadotropin


Answer: B


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