vert ic ula ") ▁do ▁not ▁involve ▁mus cular ▁layers ▁or ▁advent it ia . ▁False ▁di vert ic ula , ▁in ▁the ▁g astro int est inal ▁tract ▁for ▁instance , ▁involve ▁only ▁the ▁subm uc osa ▁and ▁m uc osa . ▁ ▁Emb ry ological ▁ ▁The ▁kid ne ys , ▁originally ▁di vert ic ula ▁in ▁the ▁development ▁of ▁the ▁ur inary ▁and ▁re product ive ▁org ans . ▁The ▁l ungs , ▁originally ▁di vert ic ula ▁forming ▁off ▁of ▁the ▁vent ral ▁for eg ut . ▁The ▁th ym us ▁appears ▁in ▁the ▁form ▁of ▁two ▁flask - shape ▁di vert ic ula , ▁which ▁arise ▁from ▁the ▁third ▁branch ial ▁p ouch ▁( ph ary n ge al ▁p ouch ) ▁of ▁the ▁end od erm . ▁The ▁thy roid ▁g land ▁develop s ▁as ▁a ▁di vert icul um ▁ar ising ▁from ▁a ▁point ▁on ▁the ▁tongue , ▁dem arc ated ▁as ▁the ▁for amen ▁c ec um . ▁ ▁Human ▁path ology ▁ ▁Gast ro int est inal ▁tract ▁di vert ic ula ▁▁ ▁Me ck el ' s ▁di vert icul um : ▁a ▁persistent ▁portion ▁of ▁the ▁om phal om esent er ic ▁du ct ▁present ▁in ▁ 2 % ▁of ▁the ▁population , ▁making ▁it ▁the ▁most ▁common ▁con gen ital ▁g astro int est inal ▁mal formation . ▁Es oph age al ▁di vert ic ula ▁may ▁occur ▁in ▁one ▁of ▁three ▁areas ▁of ▁the ▁es oph ag us : ▁Ph