<prompt> Part of colon w ith no mesentery -Transverse colonSigmoid colonAscending colonRectum  <response>: Ans. is c i.e., Ascending colonMesenteries in intestineMesentery properMesentery of small intestine jejunum and ileum is fan shaped double layered peritoneal fold which suspends the coils of jejunum and ileum. Mesentery hasAttached border root of mesenteryIt is 15 cm long and extends from duodenojejunal flexure on left side of L2 to upper part of right sacroiliac joint. Root of mesenteiy crosses following structuresi 3rdpart horizontal part of duodenum, ii abdominal aortat, iii IVC, iv right ureter, and v right psoas major:Free border intestinal borderIt is 6 meters long and is attached to gut forming its visceral peritoneum serous coat. Contents of mesentery arei Jejunal and ileal branches of superior mensentric vessels; ii Autonomic nerve plexuses; iii Lymphatics and lymph nodes and iv Connective tissue with fat.Transverse mesocolon It connects transverse colon to posterior abdominal wrall and contains middle colic vessels.Mesoappendix It connects the appendix to the ileal mesentery and contains appendicular vessels.Sigmoid mesocolonIt connects sigmoid colon to posterior pelvic wall and contains sigmoid vessels.Mesorectum : It contains superior rectal vessels artery veins with their branches, lymphatic vessels and lymph nodes along superior rectal artery, and branches from inferior mesenteric plexus. 