Variation in tonus of skeletal muscle accompanying menstrual cycle with special reference to perineum muscles.
D005260:Female; D006801:Humans; D008597:Menstrual Cycle; D018482:Muscle, Skeletal; D009132:Muscles / Q000502:physiology*; D010388:Pelvis; D010502:Perineum / Q000502:physiology*
MUSCLES/physiology; PERINEUM/physiology