stereociliummedical dictionary

<cell biology> Microfilament bundle supported projection, several microns long, from the apical surface of sensory epithelial cells hair cells) in inner ear: like a microvillus, but larger. It is stiff and may act as a transducer directly or merely restrict the movement of the sensory cilium which does have an axoneme).

Also described on cells of pseudostratified epithelium of the epididymal duct. Recently, stereocilia have been referred to as stereovilli, a much better and less confusing name.

(13 Nov 1997)