File:BurgosFawcett1955 fig14.jpg

Fig. 14. A longitudinal section of the head region of a late spermatid

Showing the arrangement of the various components of this complex cell including: the sperm nucleus (315 N), acrosome (Ac), head cap (Cap), nuclear ring (Ri), manchette (M a), postnuclear cap (Pu C), proximal centriole (Pr C), ring centriole (Ri C), and tail filaments (Ta F). The so called postnuclear cap (Pn C) appears here as a space between the nuclear membrane and the condensed chromatin of the posterior segment of the nucleus. Its origin and significance require further study. X 26,891.

Reference

Burgos MH. and Fawcett DW. Studies on the Fine Structure of the Mammalian Testis I. Differentiation of the Spermatids in the Cat (Felis Domesrica) (1955) J. Biophxsic. Biochem. Cytol. 1(4): 287-300. PMID 13242594

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