caveolae

However, some bacteria do not use typical caveolae but only caveolin-rich areas of the plasma membrane.

Lipid rafts and caveolae are examples of cholesterol-enriched microdomains in the cell membrane.

The dense band (or dense plaques) areas alternate with regions of membrane containing numerous caveolae.

The sarcolemma also contains caveolae, which are microdomains of lipid rafts specialized to cell-signaling events and ion channels.