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Ontology Browser

Term:
Parent Terms Term With Siblings Child Terms
pit +    
anterior visceral endoderm 
cervical sinus of His 
cloacal membrane +  
future foramen cecum +  
hilum +  
lens pit 
olfactory pit +  
otic pit +  
primitive groove 
primitive knot +  
primitive pit 
The small depression in the primitive streak that is caudal to the primitive node where the cells of the epiblast initially begin to invaginate during early embryogenesis.
proctodeum +  

Synonyms
Xrefs: EHDAA2:0001521 ;   EHDAA:551 ;   FMA:293120 ;   NCIT:C34267 ;   UMLS:C1514439 ;   Wikipedia:Primitive_pit
Definition Sources: MP:0009329, Wikipedia:Primitive_pit

paths to the root