<prompt> Pa of colon with no mesentery?Transverse colonSigmoid colonAscending colonRectum  <response>: Mesenteries in intestine1 Mesentery proper :- Mesentery of small intestine jejunum and ileum is fan shaped double layered peritoneal fold which suspends the coils of jejunum and ileum. Mesentery has :?i Attached border root of mesentery :- It is 15 cm long and extends from duodenojejunal flexure on left side of L2 to upper pa of right sacroiliac joint.Root of mesentery crosses following structures :-i 3rd pa horizontal pa of duodenum, ii abdominal aoa, iii IVC, iv right ureter, andv right psoas major.ii Free border intestinal border :- It is 6 meters long and is attached to gut forming its visceral peritoneum serous coat.2 Transverse mesocolon :- It connects transverse colon to posterior abdominal wall and contains middle colic vessels.3 Mesoappendix :- It connects the appendix to the ileal mesentery and contains appendicular vessels.4 Sigmoid mesocolon :- It connects sigmoid colon to posterior pelvic wall and contains sigmoid vessels.5 Mesorectum : It contains superior rectal vessels aery veins with their branches, lymphatic vessels and lymph nodes along superior rectal aery, and branches from inferior mesenteric plexus. 