Term: intestinal bulb lumen
Name: intestinal bulb
Synonyms: anterior intestine, foregut, pseudogaster
Definition: The bulbous anteriormost portion of the intestine has the most digestive enzymes and the greatest epithelial surface area.
Ontology: Anatomy Ontology [ZFA:0001076]

Name: lumen
Synonyms:
Definition: Anatomical space within a tubular organ, duct, or vessel.
Ontology: Anatomy Ontology [ZFA:0005930]