Watershed line in anal canal ?: (A) Hilton's line, (B) Pectinate line, (C) Mucocutaneous junction, (D) None
Answer is B. Ans. is 'b' i.e., Pectinate linePectinate line forms the water-shed line of anal canal.Area above pectinate line drains into internal iliac nodes and area below it drains into superficial inguinal nodes.