Fimbriae, Bacterial


Bacterial Fimbria

Bacterial Fimbriae

Bacterial Pili

Bacterial Pilus

Common Fimbria

Common Fimbriae

Common Pili

Common Pilus

Fimbria, Bacterial

Fimbria, Common

Fimbriae, Common

Pili, Bacterial

Pili, Common

Pilus, Bacterial

Pilus, Common

Thin, hairlike appendages, 1 to 20 microns in length and often occurring in large numbers, present on the cells of gram-negative bacteria, particularly Enterobacteriaceae and Neisseria. Unlike flagella, they do not possess motility, but being protein (pilin) in nature, they possess antigenic and hemagglutinating properties. They are of medical importance because some fimbriae mediate the attachment of bacteria to cells via adhesins (ADHESINS, BACTERIAL). Bacterial fimbriae refer to common pili, to be distinguished from the preferred use of "pili", which is confined to sex pili (PILI, SEX).