The stomach has the characteristic pattern of sigmodontines ( unilocular-hemiglandular ) : it is not split in two chambers by an incisura angularis and the front part ( antrum ) is covered by a glandular epithelium.
2.
Nearer its pyloric than its cardiac end is a well-marked notch, the " incisura angularis ", which varies somewhat in position with the state of distension of the viscus; it serves to separate the stomach into a right and a left portion.
3.
Directly opposite the incisura angularis of the lesser curvature the greater curvature presents a dilatation, which is the left extremity of the pyloric part; this dilatation is limited on the right by a slight groove, the sulcus intermedius, which is about 2.5 cm, from the duodenopyloric constriction.
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