axon initial segment

Term ID

GO:0043194

Synonyms

• initial segment

Definition

Portion of the axon proximal to the neuronal cell body, at the level of the axon hillock. The action potentials that propagate along the axon are generated at the level of this initial segment. (2)

References

• NIF_Subcellular:sao256000789

Ontology

GO: Cellular Component    QuickGO    AmiGO