what is the function of the mesentery in a rat
the mesentery is the thin membrane that helps to hold the small intestine in place. There are a large number of blood vessels in the mesentery, which nourish the small intesti â¦ ne with their blood supply.lthough we generally think of rats as scurrying around on the floor or in a lab cage, in nature they are rather nimble creatures. A rat is able to use its tail to provide balance when climbing branches, ropes, chains, etc. This function serves the same purpose as the tail of a cat or kangaroo.