| Namespace | MPheno.ontology | Obsolete | false |
| description | any structural anomaly of the highly condensed, modified intermediate cytoskeletal filaments strengthened by disulfide linked keratin proteins that progress from the midpiece to the principal piece of the sperm tail; outer dense fibers are believed to maintain flagellar elasticity and play a role in the protection of the sperm tail against shear forces during epididymal transport and ejaculation |
