结肠系膜
Mesocolon \Mes`o*co"lon\, n. [NL., fr. Gr. ?; me`sos middle + ? the colon : cf. F. m['e]soc[^o]lon.] (Anat.) The fold of peritoneum, or mesentery, attached to the colon. -- {Mes`o*col"ic}, a.
mesocolon n : mesentery that holds the lower colon the back abdominal wall