A motile cilium where the axoneme has a ring of nine outer microtubule doublets plus two central microtubules (and is therefore called a 9+2 axoneme). [ GOC:cilia http://www.ncbi.nlm.nih.gov/pubmed/22118931 ]
Synonyms: motile 9+2 cilium
Term information
This type of cilia may be present in solitary (so-called flagella, e.g. in sperm) or in multiple copies (so-called conventional motile cilia, e.g. in tracheal epithelium, ependyma or oviduct epithelium).
Term relations
- motile cilium
- has part some axonemal central pair
- has part some radial spoke
- has part some axonemal outer doublet
- has part some outer dynein arm
- has part some inner dynein arm