axonemal dynein complex outer dynein arm outer dynein arm complex cellular_component Outer arm structure present on the outer doublet microtubules of ciliary and flagellar axonemes. Outer dynein arms contain 2-3 heavy chains, two or more intermediate chains and a cluster of 4-8 light chains. Inner and outer dynein arms have different functions in the generation of microtubule-based motility. 2012-03-21T01:25:03Z GO:0036157 Ascomycota