Abstract：
:This study was done in order to investigate the normal ultrastructure of well-preserved mouse spinal canal ependyma using light, scanning and transmission electron microscopy. The ependymal lining was found to consist of a simple, cuboidal epithelium essentially similar to the unspecialized cuboidal ependyma of the brain ventricles. Apart from great variation in kinociliary density, no intracellular difference was noted between the ependymal cells. In contrast to earlier findings, indications of the existence of zonulae occludentes between the apical part of the ependymal cells were observed. Our findings do not support the hypothesis of secretion or intracellular transport by the ependyma, or that the ependyma constitutes a significant diffusion barrier.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Bjugn R,Haugland HK,Flood PRsubject
Has Abstractpub_date
1988-10-01 00:00:00pages
117-25eissn
0021-8782issn
1469-7580journal_volume
160pub_type
杂志文章abstract：:Ceratopsidae represents a group of quadrupedal herbivorous dinosaurs that inhabited western North America and eastern Asia during the Late Cretaceous. Although horns and frills of the cranium are highly variable across species, the lower jaw historically has been considered to be relatively conservative in morphology....
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12374
更新日期：2015-11-01 00:00:00
abstract：:The present report describes quantitative studies of mitochondria from stratified squamous epithelial cells from hamster cheek pouch mucosa in differentiating compartments. Mucosa was processed for electron microscopy and, using strict sampling procedures, electron micrographs of epithelium from defined basal, spinous...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1983-06-01 00:00:00
abstract：:Guinea-pig ovarian follicles were studied by light and electron microscopy. All freshly ruptured follicles showed small blood vessels within the stratum granulosum as well as amongst the cells of the theca interna. The evidence suggests that the marked increase in the size of the preovulatory follicle stretches the ba...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:The fine structure of the intercellular junctions of the hen parathyroid gland was studied using freeze-fracture replicas and thin sections. In the conventional thin sections, desmosomes, intermediate junctions (maculae adherentes) and gap junctions were observed, and in the lanthanum-fixed sections, tight junctions (...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1982-09-01 00:00:00
abstract：:Teeth are richly supported by blood vessels and peripheral nerves. The aim of this study was to describe in detail the developmental time-course and localization of blood vessels during early tooth formation and to compare that to innervation, as well as to address the putative role of vascular endothelial growth fact...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12950
更新日期：2019-04-01 00:00:00
abstract：:Light and electron microscopic techniques were employed to study the structure of the ureter of the starling (Sturnus vulgaris). Particular attention was paid to the characterisation of the epithelial cell types. Differences were found in the chemical composition of the mucins found in the ureteric epithelial cells an...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1983-05-01 00:00:00
abstract：:Standard immunohistochemical methods were used to detect the presence of vimentin, cytokeratin 8, cytokeratin 18, macrophages and Langerhans cells in the human tonsillar epithelium in formalin-fixed and frozen tissue specimens. Vimentin detection was restricted to infiltrating cells of the lymphoid series, dendritic a...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2001.19960663.x
更新日期：2001-12-01 00:00:00
abstract：:The structure of the sinuatrial nodal artery has been investigated in young and old rats. The nodal artery is derived from the internal thoracic artery, runs centrally though the node and supplies it by several branches. An extensive cuff of nodal cells is seen within the adventitia of the artery and its branches adja...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1980-06-01 00:00:00
abstract：:Lactating animals are particularly susceptible to mastitis during the early stages of mammary gland involution following weaning. In this study we compared the phagocytic capacity of cells collected from sheep mammary secretions at different stages of involution. The ability of neutrophils and macrophages to ingest la...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.0021-8782.2002.00104.x
更新日期：2002-11-01 00:00:00
abstract：:Dentine- and enamel-forming cells secrete matrix in consistent rhythmic phases, resulting in the formation of successive microscopic growth lines inside tooth crowns and roots. Experimental studies of various mammals have proven that these lines are laid down in subdaily, daily (circadian), and multidaily rhythms, but...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13198
更新日期：2020-08-01 00:00:00
abstract：:Although seen frequently during dissections and autopsies, Hyperostosis frontalis interna (HFI) - a morphological pattern of the frontal bone thickening - is often ignored and its nature and development are not yet understood sufficiently. Current macroscopic classification defines four grades/stages of HFI based on t...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12506
更新日期：2016-11-01 00:00:00
abstract：:The T-tubule system in cardiac muscle cells has been investigated with the electron microscope in 10 adult rats after infiltration with horseradish peroxidase. All cardiac muscle cells possess a T-system, but its complexity varies according to the region of the heart. It is most extensive in the general ventricular my...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1978-09-01 00:00:00
abstract：:Pancreatic duct glands (PDGs) are tubule-alveolar glands associated with the pancreatic duct system and can be considered the anatomical counterpart of peribiliary glands (PBGs) found within the biliary tree. Recently, we demonstrated that endodermal precursor niches exist fetally and postnatally and are composed func...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12418
更新日期：2016-03-01 00:00:00
abstract：:In a prospective cross-sectional ultrasound study the size of the fetal lumbar spinal canal was evaluated to determine reference values for the lumbar part of the vertebral canal. One hundred and sixty-seven pregnant women undergoing routine obstetric ultrasound were studied between 16 and 41 weeks of gestation. Exclu...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2002.00048.x
更新日期：2002-05-01 00:00:00
abstract：:Videodigitised outlines of C6, C7, T1 and T2 vertebrae from 23 mice carrying the mutant gene undulated (un/un) and normal littermates (+/un) have been examined by Fourier analysis. There were large differences in shape between C6 vertebrae, smaller but significant differences in C7 and insignificant differences betwee...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：:Amoeboid microglial cells (AMC) in the corpus callosum were selectively labelled following a single intraperitoneal (i.p.) injection of the fluorescent dye, rhodamine isothiocyanate (RhIc) into postnatal rats. The frequency of RhIc-labelled cells varied with age, with the largest number occurring in 7-d-old animals. T...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1993-02-01 00:00:00
abstract：:The number of neurons and glia in the mouse abducens nerve nucleus was estimated at 6, 25, 28 and 31 months of age. There was no significant variation in either the number of neurons (mean 118) or glia (mean 168) or in the glia to neuron ratio (mean 1.42) with age. Mean neuronal and glial nuclear diameters also remain...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1989-10-01 00:00:00
abstract：:The collagenous structure of the knee menisci is integral to the mechanical integrity of the tissue and the knee joint. The tie-fibre structure of the tissue has largely been neglected, despite previous studies demonstrating its correlation with radial stiffness. This study has evaluated the structure of the tie-fibre...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12170
更新日期：2014-05-01 00:00:00
abstract：:The descending projections to coccygeal spinal segments influencing tail movement were studied by retrograde wheat germ agglutinin-horseradish peroxidase (WGA-HRP) tracing methods in 12 cats. WGA-HRP solution was injected into the 3rd and 4th coccygeal segments and hemisection of the right side of the spinal cord was ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：:The effects of a chronic administration of angiotensin II on the zona fasciculata of rats treated with dexamethasone and maintenance doses of ACTH were investigated by morphometric methods applied to electron microscopy. It was found that angiotensin induced a significant increase in the volume of cells, nuclei, mitoc...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1981-03-01 00:00:00
abstract：:Premature closure of the sagittal suture occurs as an isolated (nonsyndromic) birth defect or as a syndromic anomaly in combination with other congenital dysmorphologies. The genetic causes of sagittal nonsyndromic craniosynostosis (NSC) remain unknown. Although variation of the dysmorphic (scaphocephaly) skull shape ...
journal_title：Journal of anatomy
pub_type： 杂志文章,多中心研究
doi：10.1111/j.1469-7580.2010.01258.x
更新日期：2010-08-01 00:00:00
abstract：:Mammalian Langerhans cells (LC) are epidermal dendritic cells which originate in bone marrow and migrate toward the T cell area of lymph nodes, where they act as professional antigen-presenting cells. A variety of cell surface markers, such as the ectoenzyme adenosine triphosphatase (ATPase), Ia and CDla antigens, hav...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2001.19940493.x
更新日期：2001-10-01 00:00:00
abstract：:The cellular changes in the ileum and duodenum and in the mesenteric and prefemoral lymph nodes of gnotobiotic piglets were observed following feeding with a live culture of a non-pathogenic E. coli. There was a rapid and intense reaction in the lower ileum, and follicles were formed; germinal centres were formed in t...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1977-12-01 00:00:00
abstract：:The secretory cells of the golden hamster (Mesocricetus auratus) oviductal epithelium on the day of ovulation were observed by light and electron microscopy. In the fimbriae two types of secretory cells were observed: one possessed secretory granules with electron-lucent matrices, prominent protrusions and many electr...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1991-04-01 00:00:00
abstract：:Cetaceans face the challenge of maintaining equilibrium underwater and obtaining sensory input within a dense, low-visibility medium. The cetacean ear represents a key innovation that marked their evolution from terrestrial artiodactyls to among the most fully aquatic mammals in existence. Using micro-CT and histologi...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12548
更新日期：2017-02-01 00:00:00
abstract：:Chromaffin cells were observed singly or in clusters in the heart and sympathetic cord of 2 genera of dipnoan fish, Protopterus and Lepidosiren. They were invariably found in close association with the autonomic sympathetic nervous system and at sites where chromaffin cells or their precursors are situated in mammals ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1993-10-01 00:00:00
abstract：:The ultrastructure of 3 fibrocartilages is described at the insertion of the adult rat Achilles tendon. Enthesial fibrocartilage lies at the tendon-bone junction, sesamoid fibrocartilage in the deep surface of the tendon where it presses on the calcaneus, and periosteal fibrocartilage covers the opposing surface of th...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1996-08-01 00:00:00
abstract：:Colloidal carbon was injected intravenously into young rats to label circulating monocytes before making a stab wound in the brain. The rats were killed 3-16 days after the stab wound. Demonstration of non-specific esterase, thiamine pyrophosphatase and 5'-nucleotidase was carried out on the carbon-labelled macrophage...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-10-01 00:00:00
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 ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1983-10-01 00:00:00
abstract：:Cardiac arrhythmias, notably Wolff-Parkinson-White syndrome, are known to represent a major issue in patients with Ebstein's malformation of the tricuspid valve. Abnormal conducting circuits, however, can also be produced by pathways extending either from the atrioventricular node or the ventricular components of the ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13179
更新日期：2020-07-01 00:00:00
