Anal dentate line
The pectinate line (dentate line) is a line which divides the upper two thirds and lower third of the anal canal. Developmentally, this line represents the. The length of the anal canal is about 4 cm (range, cm), with two thirds of this being above the pectinate line (also known as the dentate line). The anal verge is key in determining measurement-based suitability for neoadjuvant radiotherapy in rectal cancer. The dentate line is a distinct anatomic . Anal cryptitis. Anal crypts are pockets between grooves formed by rectal columns at their distal point ending at the dentate line. Anal cryptitis, as separate from fistula, is debatable and rare. Symptom: pain worsened by bowel movement. Signs: localized tenderness and redness at dentate line; rectal spasm. Rule out rectal fissure. The anal valves collectively form an irregular circle – known as the pectinate line (or dentate line). This line divides the anal canal into upper and lower parts, which differ in both structure and neurovascular supply. This is a result of their different embryological origins: Above the pectinate line – derived from the embryonic hindgut/5(29). The pectinate line (dentate line) is a line which divides the upper two thirds and lower third of the anal sexbokep.infopmentally, this line represents the hindgut-proctodeum junction.. It is an important anatomical landmark, and several distinctions can be made based upon the location of a structure relative to this line.