RID31055 internal surface of superior part of duodenum

RID31056 internal surface of descending part of duodenum

RID31057 internal surface of horizontal part of duodenum

RID31058 internal surface of ascending part of duodenum

RID31059 internal surface of anterior wall of duodenum

RID31060 internal surface of anterior wall of segment of duodenum 4

RID31065 internal surface of posterior wall of duodenum

RID31066 internal surface of posterior wall of segment of duodenum 4