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 myocardium where there are primary, secondary and tertiary transverse tubules as well as longitudinal elements, and there are numerous couplings between the T-system and the sarcoplasmic reticulum (SR). The T-system and associated SR couplings are less extensive in the atrium and in the atrioventricular conducting system. It is least well developed in the nodes, particularly in the sinuatrial node, where it is restricted to primary T-tubules. There are numerous SR couplings with the sarcolemma in all types of cardiac muscle cells. Where intercalated discs occur, SR couplings are associated with non-specialized parts of the disc. The possible significance of these ultrastructural features in regard to the speed of conduction by myocardial tissues, and in the excitation-contraction sequence is discussed.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Ayettey AS,Navaratnam Vsubject
Has Abstractpub_date
1978-09-01 00:00:00pages
125-40issue
Pt 1eissn
0021-8782issn
1469-7580journal_volume
127pub_type
杂志文章abstract：:The aim of this study was to design, develop and employ a method for the acquisition of a significant data base of thickness measurements. The integration of standard histological techniques (step serial sectioning), modern computer technology and a personally developed software package (specifically designed for thic...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：:Apoptosis is an essential physiological process in embryonic development. In the developing eye of vertebrates, three periods of developmental apoptosis can be distinguished: early, intermediate and later. Within the apoptosis pathway, caspases play a crucial role. It has also been shown that HSP110 may have a potenti...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2007.00719.x
更新日期：2007-05-01 00:00:00
abstract：:It has been shown that gibbons are able to brachiate with very low mechanical costs. The conversion of muscle activity into smooth, purposeful movement of the limb depends on the morphometry of muscles and their mechanical action on the skeleton. Despite the gibbon's reputation for excellence in brachiation, little in...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2009.01109.x
更新日期：2009-09-01 00:00:00
abstract：:In order to clarify the fundamental structure of the host defence mechanism in chicken caeca, a detailed analysis of the distribution of lymphoid nodules (LNs) was carried out on longitudinal sections of both the mesenteric (side of the ileocaecal ligament) and the antimesenteric mucosa. An overwhelming majority of so...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.1998.19220293.x
更新日期：1998-02-01 00:00:00
abstract：:Lateral cephalographs from 220 normal adolescent white orthodontic patients, and of individuals with craniofacial dysostosis and oculodento-osseous dysplasia were studied. Variations were observed in the morphology of the posterior margins of the superior articular processes, vertebral artery canals being present in 8...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1979-05-01 00:00:00
abstract：:Hair growth in adult mammals involves continuous dermal-epidermal interaction across the follicular basement membrane, and repeated reorganisation of lower follicle structure during the hair growth cycle. The immunolocalisation of 3 extracellular matrix components, fibronectin, laminin and type IV collagen was investi...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1992-08-01 00:00:00
abstract：:This review describes the progress made in preparing Cochrane systematic reviews of randomized controlled trials for Guillain-Barré syndrome (GBS), chronic inflammatory demyelinating polyradiculoneuropathy (CIDP), multifocal motor neuropathy (MMN) and the demyelinating neuropathies associated with paraproteins. The di...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：10.1046/j.1469-7580.2002.00041.x
更新日期：2002-04-01 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：:M. semitendinosus and m. trapezius (portion) were removed from eight miniature pigs ranging from 21 to 160 days of age and eight age-control as well as eight weight-control commercial Large White pigs. Complete transverse frozen sections were obtained for each muscle sample and stained for various enzyme activities in...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1986-08-01 00:00:00
abstract：:Mastoid canals (tunnels) were observed in 41 (7.7%) of 265 dry human skulls. The canals were 2-27 mm long. This feature has not been reported before. dissection of 30 mastoid regions in cadavers showed that the canals contained a branch of the occipital artery and a vein. It is possible that during development of the ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1996-02-01 00:00:00
abstract：:We studied the cerebellar connections to the reticular nucleus thalamus (RNT) by means of retrograde axonal transport of horseradish peroxidase (HRP) in the rat. Specific HRP pressure injections to the rostral RNT (1.6-1.8 mm caudal to bregma) resulted in retrograde labelling of neurones in the cerebellar nuclei. The ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2002.00119.x
更新日期：2002-12-01 00:00:00
abstract：:Autism Spectrum Disorders (ASDs) are a heterogeneous group of neurodevelopmental disorders that are diagnosed solely on the basis of behaviour. A large body of work has reported neuroanatomical differences between individuals with ASD and neurotypical controls. Despite the huge clinical and genetic heterogeneity that ...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：10.1111/joa.12542
更新日期：2017-01-01 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：:During long bone development the original cartilaginous model in mammals is replaced by bone, but at the long bone endings the avascular articular cartilage remains. Before the articular cartilage attains structural maturity it undergoes reorganization, and molecules such as vascular endothelial growth factor (VEGF) a...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2011.01377.x
更新日期：2011-06-01 00:00:00
abstract：:The hooked element in the pes of turtles was historically identified by most palaeontologists and embryologists as a modified fifth metatarsal, and often used as evidence to unite turtles with other reptiles with a hooked element. Some recent embryological studies, however, revealed that this element might represent a...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：10.1111/joa.12103
更新日期：2013-11-01 00:00:00
abstract：:Although it is generally assumed that herbivores have more voluminous body cavities due to larger digestive tracts required for the digestion of plant fiber, this concept has not been addressed quantitatively. We estimated the volume of the torso in 126 terrestrial tetrapods (synapsids including basal synapsids and ma...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12557
更新日期：2017-02-01 00:00:00
abstract：:The ultrastructure of the developing fetal lamb myocardium was studied in a series of animals spanning 29 days of gestation to term, and compared with newborn and adult animals. All major ultrastructural features which characterise the adult myocyte were found in early fetal life, although with considerably different ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1983-12-01 00:00:00
abstract：:Tetrapod limbs morphology is a reliable proxy of locomotor capacities. Beyond this, other aspects of life habits, such as predation abilities, can also be relevant to determine main morphofunctional appendicular properties, which ultimately reflect a compromise between different factors of the biological role. Dromaeo...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13153
更新日期：2020-05-01 00:00:00
abstract：:The European eel (Anguilla anguilla) has been extensively studied, especially because of its highly specialized migratory behaviour associated with substantial phenotypic transformations. During this migration, one of those transformations the eel undergoes is from yellow to silver eel, a process known as silvering. A...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13259
更新日期：2020-11-01 00:00:00
abstract：:The cytoarchitecture of the intra-ocular optic nerve was investigated by light and electron microscopy. Glial cells in the intra-ocular portion are disposed among the axons, either scattered or forming columns, and bordering the nervous parenchyma. Astroglia forms the limiting glia that separates the optic nerve from ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-04-01 00:00:00
abstract：:The form and position of the developing atrioventricular bundle and its branches has been studied in the hearts of domestic fowl embryos operated upon to induce delayed closure of the interventricular foramen. The operation was performed at 3 days of incubation when the outflow tract of the tubular heart was temporari...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1982-03-01 00:00:00
abstract：:Blood flow to the pancreatic islets of the anaesthetised rat was measured using the microsphere method. Basal flow was 29 (+/- 6) microliter/min per pancreas which was equivalent to 2.1 (+/- 0.2)% of the total pancreatic flow. The intravenous administration of 4 IU of soluble insulin, which rendered the animals hypogl...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：:Two or three or sometimes more fine intracavernous branches were traced from the ophthalmic nerve using serial section reconstruction and induced nerve degeneration. They joined the cavernous plexus and were distributed forward with autonomic nerves to the adventitia of the internal carotid artery, emerging from the s...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-12-01 00:00:00
abstract：:Many vertebrates have an ocular skeleton composed of cartilage and/or bone situated within the sclera of the eye. In this study we investigated whether modern and fossil sharks have an ocular skeleton, and whether it is conserved in morphology. We describe the scleral skeletal elements of three species of modern shark...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2009.01077.x
更新日期：2009-06-01 00:00:00
abstract：:Assessment of global endocranial morphology and regional neuroanatomical changes in early hominins is critical for the reconstruction of evolutionary trajectories of cerebral regions in the human lineage. Early evidence of cortical reorganization in specific local areas (e.g. visual cortex, inferior frontal gyrus) is ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12745
更新日期：2018-02-01 00:00:00
abstract：:Peri-gastrulation stage tammar wallaby embryos were cultured for up to 78 h in either Dulbecco's Modified Eagle's Medium or Medium 199, in air/6% CO(2) or 95% O(2)/5% CO(2), and with added fetal calf or wallaby serum. There was little difference between the two media or sera sources, but development was markedly super...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2007.00846.x
更新日期：2008-02-01 00:00:00
abstract：:The posterior orbitofrontal cortex, anterior temporal sensory association areas and the amygdala have a key role in emotional processing and are robustly interconnected. By analogy with the pattern of connections in early processing sensory areas, anterior temporal sensory and polymodal association cortices send prima...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：10.1111/j.1469-7580.2007.00777.x
更新日期：2007-08-01 00:00:00
abstract：:Electron microscopy has been used to investigate whether the transversely striated columns of the connecting piece in the neck region of guinea pig spermatozoa, undergo lengthening and shortening as a result of the forces generated during motility. Motile spermatozoa were subjected to near-instantaneous rapid freezing...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2008.00919.x
更新日期：2008-09-01 00:00:00
abstract：:This study has demonstrated that cells stained using the zinc iodide-osmic acid (ZIO) method have the same fine structural features as those of fibroblasts. They have a well developed Golgi apparatus, granular endoplasmic reticulum and many mitochondria. They have no basal lamina. They are distributed in association w...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1995-10-01 00:00:00
abstract：:The density and distribution of nerve fibres immunoreactive to antisera for PGP 9.5 (general neuronal marker), calcitonin gene related peptide (CGRP) and substance P (SP) (markers for sensory neurons), as well as neuropeptide Y (NPY), vasoactive intestinal peptide (VIP) and tyrosine hydroxylase (TH) (markers for auton...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.1997.19120245.x
更新日期：1997-08-01 00:00:00
