nebenkern


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nebenkern

An obsolete term for:
(1) An aggregate of mitochondria in sperm cells; 
(2) Any granular mass composed of ribonucleic acid located adjacent to the nucleus.
References in periodicals archive ?
11), and 2 mitochondrial derivatives developed from the nebenkern toward the posterior end and exhibited cristae that were arranged perpendicular to the axoneme (Fig.
ferrugineus, the nuclei of early spermatids were observed to be displaced to the cell periphery, while the nebenkern concentrated at the opposite pole to form 2 clusters.
4) The mitochondrial nebenkern (arrow) is evident in a later stage of spermiogenesis.