Abstract：
:The development of Schmidt-Lanterman incisures was investigated in the rat sural nerve during an active phase of postnatal myelination (5-21 days post partum). Two distinct populations of incisures were recognised and the following nomenclature for their developmental stages is proposed. Primary incisures which appear ab initio in myelination and always extend across the whole radial thickness of the myelin sheath but initially around only part of its circumference. Consequently they appear in transverse section as sectoral incisures (occupying less than half the circumference) and in longitudinal section as asymmetric incisures (involving one side only of the myelin sheath). Secondary incisures appear later, in regions of a compact myelin sheath, initially traversing only part of its radial thickness but commonly occupying its whole circumference. Thus they usually appear in transverse section as circumferential incisures and in longitudinal section as symmetric incisures (involving both sides of the myelin sheath). Less commonly secondary incisures may form in a sector of the myelin sheath but still in regions of compact myelin and thus appear asymmetric in longitudinal section and sectoral in transverse section. Secondary incisures appear mainly adaxonally in the earlier stages examined and mainly abaxonally in the later stages. The maturation of primary and secondary incisures into the radially and circumferentially complete incisure characteristic of the mature myelinated nerve fibre is described. The above mechanisms of incisural formation are contrasted with mechanisms previously suggested to occur during normal development and remyelination and related to the plasticity and ultrastructure of the myelin sheath.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Small JR,Ghabriel MN,Allt Gsubject
Has Abstractpub_date
1987-02-01 00:00:00pages
277-86eissn
0021-8782issn
1469-7580journal_volume
150pub_type
杂志文章abstract：:Wheat germ agglutinin-horseradish peroxidase conjugate (WGA-HRP) was injected into the dorsal root ganglia (L5-S1) of the cat and used as an anterograde tracer substance for intra-axonal labelling of peripheral nerve endings in joint capsule and cranial (anterior) cruciate ligament (CCL). We believed that the high spe...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.1997.19020289.x
更新日期：1997-02-01 00:00:00
abstract：:Decline of tactile sensation associated with ageing depends on modifications in skin and both central and peripheral nervous systems. At present, age-related changes in the periphery of the somatosensory system, particularly concerning the effects on mechanoreceptors, remain unknown. Here we used immunohistochemistry ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12983
更新日期：2019-06-01 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：:Three modes of construction of the rectus sheath above the arcuate line were found in a study of 40 cadavers. The classical description occurred most frequently, in 24 cases. The other constructions conformed to those described in earlier studies although the incidences were different. The accessory internal oblique m...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1986-04-01 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：:The histological structure of the oesophagus of the camel in different parts of its course was investigated with tissues from seven camels, and with haematoxylin and eosin and Masson's trichrome stain. Gross dissections confirmed the orientation of the muscle fibres in the tunica muscularis. The epithelium showed heav...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1982-08-01 00:00:00
abstract：:The number and topographic distribution of the profiles of degenerating primary afferent fibres were determined within the rat dorsal column 3-4 weeks after division of the lumbar and S2 dorsal roots. The degenerating fibres were identified in toluidine blue-stained 1 micron transverse sections taken at different spin...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-08-01 00:00:00
abstract：:The process by which the pronephros develops was morphologically examined in chick embryos from Hamburger-Hamilton stage (ST) 8+ to ST34. The intermediate mesoderm, from which the pronephros arises, was first seen as a faint ridge of undifferentiated mesoderm between the segmental plate and lateral plate at ST8+. It f...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2003.00245.x
更新日期：2003-12-01 00:00:00
abstract：:Although several studies have been published regarding the morphology and anatomical variations of the human shoulder joint, most have dealt with adult individuals. Those looking into the development of the joint have been focused on specific structures or have observed specimens in advanced gestational stages. The go...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12753
更新日期：2018-03-01 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：:A one day symposium of the Anatomical Society of Great Britain and Ireland was held at the Royal Free Hospital in London on the 17th September 1999, on the topic of 'Mechanisms of ageing and longevity'. The following are abstracts of communications and posters presented at the meeting. ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2000.19620293.x
更新日期：2000-02-01 00:00:00
abstract：:In experimental studies addressing the regulation of myelin formation and maintenance by Schwann cells, the sympathetic nervous system of young adult rodents has served a key role as an essentially nonmyelinated yet modifiable control tissue. Nevertheless there is clear evidence of substantial myelination in the super...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1994-04-01 00:00:00
abstract：:Ethmoturbinates, nasoturbinates, and maxilloturbinates are well developed in the narial tract of land-dwelling artiodactyls ancestral to whales, but these are greatly reduced or lost entirely in modern whales. Aegyptocetus tarfa is a semiaquatic protocetid from the middle Eocene of Egypt. Computed axial tomography sca...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13088
更新日期：2020-01-01 00:00:00
abstract：:The retinal vasculature of postmortem normal human and diabetic eyes was studied using an immunohistochemical technique in conjunction with confocal laser scanning microscopy. The technique, which stained for von Willebrand factor, allowed both large areas of the retinal vasculature to be visualised and abnormalities ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.1999.19410089.x
更新日期：1999-01-01 00:00:00
abstract：:Rodents, together with bats, are among the ecologically most diverse and most speciose groups of mammals. Moreover, rodents show elaborate specializations of the feeding apparatus in response to the predominantly fore-aft movements of the lower jaw. The Laotian rock rat Laonastes aenigmamus was recently discovered and...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2012.01519.x
更新日期：2012-08-01 00:00:00
abstract：:Scanning microinterferometric measurements were made of matrix dry mass in the intermediate layer of normal rabbit patellar articular cartilage and in the area surrounding standard, experimental, full-thickness lesions of 1-5 mm diameter. The lesions were created in 1 kg animals and were allowed to heal for up to 3 we...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1977-09-01 00:00:00
abstract：:The cortical representations of the vibrissae of the rat form a matrix in which each whisker has its own area of cortex, called a 'barrel'. The afferent pathways from the periphery travel first to the trigeminal nuclei and thence via the ventroposteromedial thalamus (VPM) to the cortical barrels have been described in...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2000.19630379.x
更新日期：2000-04-01 00:00:00
abstract：:The ultrastructure of the tammar placenta was studied throughout pregnancy. The uterine epithelium grows from a columnar to an enlarged, undulating epithelium between early gestation and mid-gestation when the shell coat that surrounds the marsupial conceptus ruptures. Trophectoderm and uterine epithelium do not form ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2002.00084.x
更新日期：2002-08-01 00:00:00
abstract：:It is currently thought that New World monkeys, prosimians, and humans are the only primates to possess vomeronasal organs (VNOs) as adults. Recent studies of the human VNO suggest that previous investigations on Old World primates may have missed the VNO. We examined nasal septa from the chimpanzee (Pan troglodytes) ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2001.19810077.x
更新日期：2001-01-01 00:00:00
abstract：:The olfactory bulb of adult specimens of Carassius auratus was subjected to an autoradiographic study using [3H]thymidine. Adult specimens of Carassius auratus, Barbus meridionalis, Cyprinus carpio and Salmo gairdneri were also studied using light and electron microscopy. Cells were found undergoing mitotic division w...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1989-04-01 00:00:00
abstract：:Two arteries connect the anterior branch of the middle meningeal artery to the lacrimal artery. One vessel, the sphenoidal artery, passes through the superior orbital fissure. The other vessel, the meningolacrimal artery, passes through the cranio-orbital foramen. An analysis of data derived from embryology, comparati...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：:The koala has an inguinoaxillary lymph trunk on either side of the ventral midline, and this carries efferent lymph from the superficial inguinal lymph node directly to the deep axillary lymph node. The superficial lymph nodes are large and soft compared with those of the domestic species, and each lymph centre usuall...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：:Fixed and unfixed human tendons originating from cadavers and postoperation specimens were examined using inclined parallel beams of light in a reflecting mode. Along the tendon, numerous planes, constantly inclined to the axis, were observed edge-on at the surface and within the interior. Their angle of inclination, ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1995-06-01 00:00:00
abstract：:Connective tissue function is defined as the formation and maintenance of shape, without which centralised physiologies (circulatory, digestive or nervous) could not have evolved. Two elements, inextensible (collagenous) fibrils and compression-resistant interfibrillar soluble polymers (proteoglycans), cope with all u...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：
更新日期：1995-10-01 00:00:00
abstract：:Anatomical specimens used in human or veterinary anatomy laboratories are usually prepared with formaldehyde (a cancerous and teratogenic substance), glycerin (an expensive and viscous fluid), or ethanol (which is flammable). This research aimed to verify the viability of an aqueous 30% sodium chloride solution for pr...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12185
更新日期：2014-07-01 00:00:00
abstract：:A quantitative, postmortem study of 36 human inferior alveolar nerves is described. The total myelinated fibre count (TMFC) of nerves was not related to sex or age of the subjects but significant positive correlations were found between TMFC and subject body weight in both dentate (r = 0.616) and edentulous (r = 0.676...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-04-01 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：:An electron microscopic study of myelination was carried out in the anterior limb of the anterior commissure of the mouse brain. The total number of axons increased from 48 700 at 17 days post-conception to 286 500 at 11 days postnatum. The first evidence of myelination was the presence of a few promyelin fibres at 8 ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1975-02-01 00:00:00
abstract：:The behavioral differences in muscle use are related to the fiber type composition of the muscles among other variables. The aim of this study was to examine the degree of heterogeneity in the fiber type composition in the rat temporalis muscle. The temporalis muscle was taken from 10-week-old Wistar strain male rats ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2008.00990.x
更新日期：2008-12-01 00:00:00
abstract：:The blood supply of the symphysis pubis is still the subject of some debate. Classic anatomy books state that this joint is avascular, whereas some published works have shown blood vessels in young specimens. As several articular discs such as the knee menisci are known to have blood vessels in their peripheries, we d...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.0021-8782.2004.00271.x
更新日期：2004-03-01 00:00:00
