<prompt> Lesser sac of stomach is bounded by -a Posterior wall of stomachb Visceral surface of spleenc Under surface of liverd Greater omentumabcacdbcbde  <response>: Boundaries of the lesser sac are:-Anterior wall:- a Caudate lobe of the liver, stomach, lesser omentum, and 2nd layer of the greater omentum.Posterior wall:- 3rd layer of greater omentum, and structures forming stomach bed transverse colon, transverse mesocolon, diaphragm, left kidney, left suprarenal gland, pancreas, and splenic vessels.Right border :- Right free margin of greater omentum and floor of epiploic foramen.Left border:- Left free margin of greater omentum; gastrosplenic, lino renal and gastrophrenic ligaments.Upper border:- a reflection of the peritoneum from the esophagus to diaphragm.Lower border:- Continuation of 2nd and 3rd layers of the greater omentum. 