Anal transition zone is ?
Anal transition zone is Columnar-Cuboidal-Squamous Dentate line (Pectinate line)is Sqaumocolumnar junction below to it is Squamous epithelium and above to it is transitional zone which is Columnar - Cuboidal epithelium.
columnar - cuboidal - squamous
columnar-squamous - cuboidal
squamous-cuboidal-columnar
cuboidal-squamous-columnar
Systemic histology