The simple columnar and stratified columnar epithelia lining the lower pa of the anal canal is derived from
The anal canal is formed from two components--the hindgut and proctodeum. The epithelium lining the lower anal canal is derived from ectoderm lining the proctodeum. above the pectinate line develop from:-endodermal cloacae beiow the pectinate line delelop from :-ectodermal proctodeum
Mesoderm
Endoderm
Ectoderm
Neuroectoderm
Embryology and abdominal wall layer