. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. jl' ~ GC Ac V. Figs. 2 and 3. Corresponding areas of two differentiating numan spermatids. In eaeh, the acrosomal vesicle (Ac V) is closely adherent to the nucleus (N) and its content is slightly more dense than the surrounding cytoplasm. The acrosomal granule (Ac Gr), enclosed within in the vesicle, is somewhat flattened and occupies a shallow depression in the nucleus. There are several sizeable vacuoles and numerous smaller ones in the neighbouring Golgi complex (Go C). These are Jbelieved to coalesc


. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. jl' ~ GC Ac V. Figs. 2 and 3. Corresponding areas of two differentiating numan spermatids. In eaeh, the acrosomal vesicle (Ac V) is closely adherent to the nucleus (N) and its content is slightly more dense than the surrounding cytoplasm. The acrosomal granule (Ac Gr), enclosed within in the vesicle, is somewhat flattened and occupies a shallow depression in the nucleus. There are several sizeable vacuoles and numerous smaller ones in the neighbouring Golgi complex (Go C). These are Jbelieved to coalesce with the acrosomal vesicle and so contribute to its progressive Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ciba Foundation; Wolstenholme, G. E. W. (Gordon Ethelbert Ward). Boston, Little, Brown


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