part of part of develops_from has potential to develop into pair of lungs foregut primordium lung primordium A pair of lateral diverticula just over the liver rudiment representing the primordia of the lungs, formed by the floor of the foregut just anterior to the liver diverticulum. AAO:0011059 EFO:0002578 EMAPA:36007 UBERON:0005597 UBERON:3010717 XAO:0001002 lateral diverticula lung diverticulum lung endoderm uberon respiratory primordium