The fixed portion of the small intestine deeply lodged in the posterior wall of the abdomen and extending from the pylorus to the beginning of the jejunum.

Local Unique Identifier

0000052

Parts

• hog:0000360 duodenum rostral part
• hog:0000361 duodenum caudal part

Relation BFO:0000050 part of

• hog:0000055
• hog:0000285
• hog:0000290
• hog:0000291