[Themes of proctology. Basic concepts of proctological anatomy and histology].
D001003:Anal Canal / Q000033:anatomy & histology*; D003107:Colorectal Surgery; D006652:Histological Techniques; D006801:Humans; D012007:Rectum / Q000033:anatomy & histology*
ANUS/anatomy and histology; RECTUM/anatomy and histology