Observations on the valves of Houston in the human embryo and foetus.
D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D005333:Fetus; D006652:Histological Techniques; D006801:Humans; D012007:Rectum / Q000033:anatomy & histology*
EMBRYO; FETUS; RECTUM/anatomy and histology