RT Book, Section
A1 Ellison, E. Christopher
A1 Zollinger, Robert M.
SR Print(0)
ID 1127271611
T1 ANATOMY OF THE LARGE INTESTINE
T2 Zollinger's Atlas of Surgical Operations, 10e
YR 2016
FD 2016
PB McGraw-Hill Education
PP New York, NY
SN 978-0-07-179755-9
LK accesssurgery.mhmedical.com/content.aspx?aid=1127271611
RD 2024/04/17
AB Because  of  its  embryologic  development  from  both  the  midgut  and  hindgut,  the  colon  has  two  main  sources  of  blood  supply:  the  superior  mesenteric  (1)  and  the  inferior  mesenteric  arteries  (2).  The  superior  mesenteric  artery  (1)  supplies  the  right  colon,  the  appendix,  and  small  intestine.  The  middle  colic  artery  (3)  is  the  most  prominent  branch  of  the  superior  mesenteric  artery.  It  arises  after  the  pancreaticoduodenal  vessels  (see  Chapter  5).  The  middle  colic  artery  branches  into  a  right  and  left  division.  The  right  division  anastomoses  with  the  right  colic  (4)  and  the  ileocolic  (5)  arteries.  The  left  branch  communicates  with  the  marginal  artery  of  Drummond  (6).  The  middle  and  right  colic  and  ileocolic  arteries  are  doubly  ligated  near  their  origin  when  a  right  colectomy  is  performed  for  malignancy.  The  ileocolic  artery  reaches  the  mesentery  of  the  appendix  from  beneath  the  terminal  ileum.  Angulation  or  obstruction  of  the  terminal  ileum  should  be  avoided  following  the  ligation  of  the  appendiceal  artery  (7)  in  the  presence  of  a  short  mesentery.