Abstract
In early rat spermatids, two distinctly different kinds of movements of cell components were detected by video-analysis. The primary flagellum, a typical 9 + 2 axonema, is capable of inducing wave-like movements in three dimensions, unlike late spermatid forms, which display motility of the now thickened flagellum only by repeated bending of its extreme part. Additionally, at the apical regions of spermatids of the same early stage, cytoplasmic protrusions executed rhythmic movements at a frequency of almost three times per second. The two kinds of motility of the different components in the same cell type are thought to be involved in normal orientation and transfer of spermatids in the tubulus seminiferus during their differentiation to sperm.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
