Cyclical changes in the cells of perineal connective tissue.
D003238:Connective Tissue / Q000033:anatomy & histology*; D004171:Diploidy; D005260:Female; D006652:Histological Techniques; D015186:Hominidae; D006801:Humans; D008598:Menstruation / Q000502:physiology*; D010388:Pelvis; D010502:Perineum / Q000502:physiology*
APES; CONNECTIVE TISSUE/anatomy and histology; MENSTRUATION/physiology; PERINEUM/physiology