The corpus luteum and the sacral parasympathetics.
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D003338:Corpus Luteum / Q000502:physiology*; D004717:Endometrium / Q000502:physiology*; D005260:Female; D006801:Humans; D013116:Spinal Cord / Q000502:physiology*
CORPUS LUTEUM/physiology; ENDOMETRIUM/physiology; SPINAL CORD/physiology