caveola neck
A membrane microdomain that forms a necklace around the bulb (crater) of a caveola. Intramembrane particles are concentrated in this region and cytoskeletal components, including actin, are highly enriched in the area underlying it.
GO:0098590
plasma membrane region
is_a
GO:0098857
membrane microdomain
is_a
GO:0005901
caveola
part_of