Über das Epithel im Nebenhoden der Maus

Fuchs, H

doi:10.1007/bf02109323

Cited by 47 publications

(2 citation statements)

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“…Die Volumenzunahm c und die A brundung einer Zelle unter Verdrängung benachbarter Zellen, wie wir das für die «Hellen Zel len» festgestellt haben, stellen das erste Kennzeichen einer beginnen den Mitose dar (Fuchs [1902]). Wassermann [1929] beschreibt das früheste Stadium einer Prophase ganz allgemein folgenderm aßen: «... während der Zellenleib unter gleichzeitiger A ufhellung zuerst im basalen A bschnitt eine die Nachbarzellen bedrängende A uftrei bung erfährt», erfolgt anschließend eine «Abrundung der Zelle zur Mitose»; «dieses für das angezogene Epithel charakteristische Ver-halten ist für uns von um so größerer Bedeutung, als die Beschaffen heit des Kerns, der noch kein Spirem entwickelt hat, zeigt, wie diese die ganze Zelle betreffenden Veränderungen zu den frühesten E r scheinungen der Mitose gehören.…”

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Über Die «hellen Zellen» Im Epithel Der Menschlichen Uterusschleimhaut

Fuchs¹

1959

Cells Tissues Organs

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Section: Diskussionunclassified

Über Die «hellen Zellen» Im Epithel Der Menschlichen Uterusschleimhaut

Fuchs¹

1959

Cells Tissues Organs

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“…The " Granular " Secretion of the Epididymis.-Fuchs described two forms of secretion in the epididymis, a liquid and a granular one (5). Although his work appeared before the recognition of the Golgi apparatus as a definite cell structure, he gave an account of the formation of the two kinds of secretory products in relationship with a canalicular cytoplasmic structure, which undoubtedly was a negative picture of the Golgi apparatus.…”

Section: (Iii)mentioning

confidence: 99%

Cell organs during secretion in the epididymis

Ludford

1925

Proc. R. Soc. Lond. B.

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Anatomically, the epididymis is the mass of convoluted tubules which connect the testis with the vas deferens. It has been the subject of numerous cytological studies, owing to the fact that the epithelial cells lining its constituent tubules elaborate a secretion, which has been considered to provide nourishment for the spermatozoa during their passage to the vasa. This secretion has been regarded by some observers as of nuclear origin, and by others as a cytoplasmic product. Benoit has described in cells of the epididymis of certain mammals, including man, the extrusion of nucleolar particles from the nucleus into the cytoplasm. Such particles generally enlarge in the cytoplasm, and are finally ejected into the lumen containing the spermatozoa. The budding-off of portions of the nucleus, containing acidophil granules and karyolymph, was also observed. According to Benoit, therefore, the secretion, which, he considers, subserves a nutritive function for the spermatozoa, is derived principally from the nucleus (1).

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Morphology of the epithelium of the extratesticular rete testis, ductuli efferentes and ductus epididymidis of the adult male rabbit

1979

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The fine structure of the epithelium lining the extratesticular rete testis, ductuli efferentes and ductus epididymidis of the rabbit has been investigated. In the ductuli efferentes the epithelium is composed of two cell types, principal cells and ciliated cells. The latter type is distinguished from principal cells by the presence of cilia projecting into the lumen and the position of the nucleus in the apical half of the cell. Principal cells in this segment are characterized by micropinocytotic vesicles on the surface plasma membrane and a variety of small dense bodies scattered throughout the cytoplasm. In the ductus epididymidis basal cells replace ciliated cells as the second cell type, but differences between various segments of the epididymis are related to the fine structure of the principal cells. In the proximal caput epididymidis (Nicander's region 1) the principal cells are tall with long microvilli. They typically contain a small Golgi apparatus and a cluster of dense bodies adjacent to the nucleus. In the distal caput epididymidis (Nicander's regions 2-5) the apical cytoplasm of principal cells is filled with numerous micropinocytotic vesicles and large multivesicular bodies; these features are interpreted as signs of absorptive activity. The multivesicular bodies are absent from the cytoplasm of principal cells in the corpus epididymidis (Nicander's region 6) and, instead, numerous elements of smooth endoplasmic reticulum, a large Golgi apparatus, lipid droplets and dense bodies characterize principal cells in this segment. Towards the proximal cauda epididymidis (Nicander's region 7), the number of dense bodies (lysosomes) in the cytoplasm increases considerably. In the globose cauda (Nicander's region 8), the principal cells are reduced in height, and in addition to the features described in region 7, are characterized by a concentric array of rough endoplasmic reticulum in the basal cytoplasm. These observations are discussed in relation to the role of the epididymis in promoting the maturation and survival of spermatozoa.

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Über das Epithel im Nebenhoden der Maus

Cited by 47 publications

References 3 publications

Über Die «hellen Zellen» Im Epithel Der Menschlichen Uterusschleimhaut

Über Die «hellen Zellen» Im Epithel Der Menschlichen Uterusschleimhaut

Cell organs during secretion in the epididymis

Morphology of the epithelium of the extratesticular rete testis, ductuli efferentes and ductus epididymidis of the adult male rabbit

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