Term: external yolk syncytial layer microvillus
Name: external yolk syncytial layer
Synonyms: E-YSL
Definition: The portion of the YSL that is outside of the blastoderm margin during epiboly.
Ontology: Anatomy Ontology [ZFA:0000309]

Name: microvillus
Synonyms: microvilli
Definition: Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments. Present in especially large numbers on the absorptive surface of intestinal cells.
Ontology: GO: Cellular Component [GO:0005902]    QuickGO    AmiGO