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Rectal diverticulum to side tube usually spontaneously occurs in one week.
The dorsal diverticulum becomes the body and tail, and the ventral diverticulum becomes the head.
Bacterial colonization of the airways leads to further inflammation and the formation of diverticula in the bronchial tree.
After neurulation, paired cavities called Hatschek's diverticula (possible pituitary homologue) form in the head endoderm.
A urethral diverticula is usually identified as a distal bulge under the urethra.