Abstract:
:The Harderian gland, its secretory duct and porphyrin content were examined in the mongolian gerbil (Meriones unguiculatus). The gland consisted of tubules lined by a single layer of epithelial cells and a myoepithelial network. The tubule cells were often binucleate and possessed lipid vacuoles in the apical half of the cell, a corona of granular endoplasmic reticulum surrounding the nucleus, and cytoplasmic 'slashes'. The latter are probably derived from dense membranous couplets and may be precursors of the lipid vacuoles. Holocrine and merocrine secretion was observed. Interstitial cells included plasma cells, mast cells and (predominantly) melanocytes which render the gland black. The gland was surrounded by a collagen capsule and an outer layer of highly attenuated (possibly endothelioid) cells. Within the gland, the secretory duct was lined by a single layer of normal tubule cells. Outside the gland, the duct enlarged to form an ampulla, from which clefts led off to deep crypts. The ampulla and clefts were lined by cells with small dense apical granules and stubby microvilli; some possessed lipid vacuoles. The crypts were lined by serous cells with active Golgi regions. At the duct opening, ampullary cells became squamous and goblet cells occurred. Geometric crystalloid deposits (with a layered structure of 7.6 nm periodicity) occurred at cleft-crypt junctions. Islets of extra-glandular ductal tissue were occasionally found within the gland. Porphyrins were detectable both by chemical assay and fluorescence microscopy. There was a trend for female glands to have a higher content than males. Solid intraluminal accretions of porphyrin and/or lipid were present.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Johnston HS,McGadey J,Thompson GG,Moore MR,Payne APsubject
Has Abstractpub_date
1983-10-01 00:00:00pages
615-30eissn
0021-8782issn
1469-7580journal_volume
137 (Pt 3)pub_type
杂志文章abstract::The rete testis in the domestic fowl (Gallus gallus domesticus), Japanese quail (Coturnix coturnix japonica), guinea-fowl (Numida meleagris galeata) and drake (Anas platyrhynchos) was studied histologically and with both the scanning and transmission electron microscopes. All the birds have rete epithelial cells varyi...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1982-08-01 00:00:00
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journal_title:Journal of anatomy
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abstract::Dry dissected rat incisor ameloblasts studied in the scanning electron microscope show remarkable specializations of their lateral surfaces. Four or five cycles of a change from a surface with longitudinal gutterlike folds associated with large intercellular spaces, to one with microvilli and reduced intercellular spa...
journal_title:Journal of anatomy
pub_type: 杂志文章
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更新日期:1976-12-01 00:00:00
abstract::In stem-cell research a major difficulty is caused by the lack of distinctive features that allow the identification of human mesenchymal stem cells (hMSC). Until now, there has been no specific marker and the most common way to identify hMSC is by their characteristic stem-cell properties: self-replication and differ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2004.00252.x
更新日期:2004-02-01 00:00:00
abstract::The astroglial lineage consists of heterogeneous cells instrumental for normal brain development, function and repair. Unfortunately, this heterogeneity complicates research in the field, which suffers from lack of truly specific and sensitive astroglial markers. Nevertheless, single astroglial markers are often used ...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
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更新日期:2019-09-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1984-10-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12205
更新日期:2014-08-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12341
更新日期:2015-09-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1998.19220195.x
更新日期:1998-02-01 00:00:00
abstract::The aim of the present study was to investigate the ultrastructure of secretory cells in the various regions of the goat oviduct during the follicular and luteal phases of the oestrous cycle. During the follicular phase in the fimbriae, the secretory cells contained small secretory granules with electron-dense matrice...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1999.19540515.x
更新日期:1999-11-01 00:00:00
abstract::Facial expressions are a critical mode of non-vocal communication for many mammals, particularly non-human primates. Although chimpanzees (Pan troglodytes) have an elaborate repertoire of facial signals, little is known about the facial expression (i.e. mimetic) musculature underlying these movements, especially when ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2006.00523.x
更新日期:2006-02-01 00:00:00
abstract::The effects of varying periods of general protein-calorie undernutrition during early life on Purkinje cells in the cerebellum of the rat were examined. In Experiment 1, animals were undernourished from d 18 of gestation until either d 30 or d 60 of postnatal age, followed in some cases by a period of nutritional reha...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1992-10-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/j.1469-7580.2005.00483.x
更新日期:2005-11-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/j.1469-7580.2010.01262.x
更新日期:2010-10-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13213
更新日期:2020-09-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract::The morphology of the cartilage-marrow interface in chick embryo tibiae has been studied from Day 11 to Day 14. The cartilage-marrow interface did not present a uniform aspect and three different areas could be defined. Most of the interface was lined by fibroblast-like cells, macrophage-like cells and multinucleate g...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1988-10-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1976-02-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12560
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1993-12-01 00:00:00
abstract::A total histological grade does not necessarily distinguish between different manifestations of cartilage damage or degeneration. An accurate and reliable histological assessment method is required to separate normal and pathological tissue within a joint during treatment of degenerative joint conditions and to sub-cl...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2012.01513.x
更新日期:2012-07-01 00:00:00
abstract::An unbiased stereological counting device (the fractionator) was used to count Purkinje neurons in mammalian cerebella of known weights in order to define the relationship between weight and number. Nucleoli were chosen as the counting unit and numbers were estimated from uniform random samples of wax-embedded tissue ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1993-08-01 00:00:00
abstract::Uptake and translocation of particulates across the mucosal barrier of the gastrointestinal (GI) tract is now generally recognised but the effect of pathophysiologically induced changes on this process is less well established. This study evaluated the effect of diabetes mellitus on GI absorption of particles, compari...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1996-12-01 00:00:00
abstract::Astyanax brucutu is a peculiar species of Neotropical tetra endemic from the Chapada Diamantina, a large plateau in northeastern Brazil. Individuals of this species undergo a dramatic ontogenetic shift in their diet that is accompanied by equally remarkable changes in their feeding apparatus. Whereas juveniles of A. b...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13280
更新日期:2020-12-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2011.01402.x
更新日期:2011-09-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1981-01-01 00:00:00
abstract::The ventricular surface features of the pineal recess of 35 adult brush-tailed possums (Trichosurus vulpecula) were studied, mainly with the scanning microscope. The complex and interesting details observed have not been reported before. The pineal recess shows three distinct zones, and it is suggested that these be c...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1979-10-01 00:00:00
abstract::The entire lengths of central and peripheral myelin sheaths on the same ventral motoneuron axons of young rats were studied during the rapid early phase of myelination which occurs during the first 2 weeks after birth. Sheath thickness varied along central internodes at all ages, though this variation was less in the ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1978-08-01 00:00:00