Abstract:
:Tooth germs from the mandibles of 5 stillborn infants were examined by scanning electron microscopy and light microscopy in order to investigate the surgace structure at different stages of mineralization. The surface of the completed enamel of the incisal third of the incisors was smooth, indicating that amelogenesis was at an end. The interface relief between ameloblasts and enamel matrix on the remaining part of the incisors, and on the forming cusps, was characterized by numerous deep pits caused by the Tomes' processes of the ameloblasts. When parts of the organic matrix were removed by sodium hypochlorite, the crystals were exposed as needle-shaped structures. Towards the bases of the cusps the pits gragually smoothed out, continuing as a narrow even surface zone corresponding to the first formed aprismatic enamel. In this zone circular holes 1 micronm were encountered which the light microscope studies showed were dentinal tubules passing into the enamel. At the bases of the cusps there was a rather abrupt demarcation toward a surface zone exhibiting countless slender villi. The light microscope observations indicated that these villi represented the first formed dentine after the basement membrane had disappeared.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Thylstrup A,Skaaring P,Fejerskov O,Bierring Fsubject
Has Abstractpub_date
1977-04-01 00:00:00pages
537-47issue
Pt 2eissn
0021-8782issn
1469-7580journal_volume
123pub_type
杂志文章abstract::The blood supply to the cranial venae cavae on both sides and to the heart was studied macroscopically in 40 adult laboratory shrews (Suncus murinus) of both sexes injected either with Neoprene latex into the abdominal aorta (25 animals) or with Mercox into the left ventricle (15 animals). The 1st branch of the left s...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1993-12-01 00:00:00
abstract::Kinetic changes have been studied in the transitional cells of the marrow in normal, hypoxic (0.5 atm) and rebound rats. Suspensions of marrow cells were incubated with tritiated thymidine for 1 hour, and the percentage of labelled transitionals of all sizes, as well as of large transitionals, was couinted in radioaut...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1980-03-01 00:00:00
abstract::Mucins are high molecular weight glycoproteins which constitute the major component of the mucus layer and are produce by many epithelial tissues in vertebrates. Osteopontin (OPN) is an adhesive phosphorylated glycoprotein that is expressed by a broad range of tissues and cells. Although gastric mucins MUC1, MUC5AC, M...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2010.01243.x
更新日期:2010-07-01 00:00:00
abstract::The architecture of the fibres in the sciatic nerve of the dog has been analysed by following the degeneration of fibres resulting from division of the individual spinal nerves which contribute to the sciatic nerve. A pattern has been demonstrated which varies in part with the size of the contribution to the sciatic n...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1978-10-01 00:00:00
abstract::The fossil record supports the conclusions derived from the study of extant species that the Primates evolved a unique suite of characters in the articulations of the foot. The tarsal bones of African Miocene apes show specializations characteristic of hominoid evolution and provide reasonable precursors for the morph...
journal_title:Journal of anatomy
pub_type: 历史文章,杂志文章
doi:
更新日期:1980-09-01 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::Glycosaminoglycans have been demonstrated throughout the cutaneous BMZ at the ultrastructural level. Colloidal iron and cationised ferritin proved of limited value, whilst staining with Alcian blue and application of the critical electrolyte concentration principle has provided evidence for the presence of sulphated G...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00
abstract::The straightforward anatomical organisation of the developing and mature rat spinal cord was used to determine and interpret the time of appearance and expression patterns of microtubule-associated proteins (MAP) 1b and 2. Immunoblots revealed the presence of MAP1b and 2 in the early embryonic rat spinal cord and conf...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract::Human ovarian granulosa cells were cultured on a basement membrane preparation (Matrigel) to investigate the role of extracellular matrix components in granulosa cell cluster formation. Time-lapse videomicroscopy of these cultures revealed a rapid aggregation of cells which was initiated during the first 2-4 h of cult...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.2000.19620243.x
更新日期:2000-02-01 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::A defining feature of dentitions in modern sharks and rays is the regulated pattern order that generates multiple replacement teeth. These are arranged in labio-lingual files of replacement teeth that form in sequential time order both along the jaw and within successively initiated teeth in a deep dental lamina. Two ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12796
更新日期:2018-06-01 00:00:00
abstract::It is well known that large pyroninophilic cell proliferation in regional lymphoid tissue preceds and accompanies cell-mediated immunological reactions. In the present study of lymph node responses in the pregnant rat it was found that there were no significant differences between large pyronionphilic cell counts from...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1975-07-01 00:00:00
abstract::Fibre type composition in the soleus muscle was studied in second generation male and female Sprague-Dawley rats bred at 460 Torr (hypobaric hypoxia). In control male and female rats (bred at sea level atmospheric pressure) the percentage of slow twitch oxidative (SO) fibres increased, and the percentage of fast twitc...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1992-10-01 00:00:00
abstract::Knowledge of the pattern of human craniofacial development in the fetal period is important for understanding the mechanisms underlying the emergence of variations in human craniofacial morphology. However, the precise character of the prenatal ontogenetic development of the human cranium has yet to be fully establish...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2008.00884.x
更新日期:2008-05-01 00:00:00
abstract::The macula flavae (MF), populated by vitamin A-storing stellate cells (SCs), are believed to play a fundamental role in development, maintenance and repair of the vocal fold (VF) mucosa; however, to date, they have mostly been examined in observational human cadaver studies. Here, we conducted an interspecies comparis...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12211
更新日期:2014-09-01 00:00:00
abstract::The insulin/insulin-like growth factor (IGF) system regulates fetal and placental growth and development. In maternal diabetes, components of this system including insulin, IGF1, IGF2 and various IGF-binding proteins are deregulated in the maternal or fetal circulation, or in the placenta. The placenta expresses consi...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/j.1469-7580.2008.01035.x
更新日期:2009-07-01 00:00:00
abstract::The pulmonary intravascular macrophages (PIMs) of domestic ungulates are recognised by their specific surface coat, consisting of linearly arranged globules along the external leaf of the plasma membrane. The coat is sensitive to in vitro digestion with lipolytic lipase (LPL), intravenous heparin and clinical exposure...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.2001.19850611.x
更新日期:2001-05-01 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::It is well established that many tissue-derived factors are involved in blood vessel formation, but evidence is now emerging that endothelial cells themselves represent a crucial source of instructive signals to non-vascular tissue cells during organ development. Thus, endothelial cell signalling is currently believed...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/j.1469-7580.2007.00790.x
更新日期:2007-10-01 00:00:00
abstract::Male rats undernourished from about birth until 100 days of age were nutritionally rehabilitated until 200 days. Six control and six experimental rats were anaesthetised and X-rayed at each of 50, 100 and 200 days. Measurements of various skeletal dimensions, and estimates of skeletal maturity, were made from these ra...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1985-08-01 00:00:00
abstract::Growth affects the performance of structure, so the pattern of growth must influence the role of a structure and an organism. Because animal performance is linked to morphological specialization, ontogenetic change in size may influence an organism's biological role. High bite force generation is presumably selected f...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12342
更新日期:2015-09-01 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::The unusual occurrence of skeletal muscle in the pineal gland of the bat Rhinopoma microphyllum is described. Individual muscle fibres were centrally placed and were incompletely encapsulated by a labyrinthine network of widened spaces filled with electron-dense material. The 2.4 micron long sarcomeres consisted of we...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1994-02-01 00:00:00
abstract::The gross and microscopic anatomy of the Cape fur seal heart, lung, liver, spleen, stomach, intestine and kidneys (n = 31 seals) is described. Absolute and relative size of organs from 30 male seals are presented, with histological examination conducted on 7 animals. The relationship between log body weight, log organ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1999.19520235.x
更新日期:1999-08-01 00:00:00
abstract::Nearly two thirds of the approximately 700 species of living salamanders are lungless. These species respire entirely through the skin and buccopharyngeal mucosa. Lung loss dramatically impacts the configuration of the circulatory system but the effects of evolutionary lung loss on cardiac morphology have long been co...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12535
更新日期:2017-01-01 00:00:00
abstract::This study set out to determine the pattern of development and distribution of the interstitial cells of Cajal (ICC) in the intestinal tract of the equine fetus and neonate. Intestinal tissue samples from 12 naturally aborted equine fetuses and three euthanized neonates were collected and fixed in formalin prior to ap...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.0021-8782.2004.00315.x
更新日期:2004-07-01 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 proposal that the cytoplasmic granules of glomerular peripolar cells (PPCs) of the adult sheep and lamb contain a kallikrein-like substance has been re-examined. After extensive characterisation and purification of anti-kallikrein antibodies, it was concluded that PPCs do not contain immunohistochemically detectab...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1989-02-01 00:00:00
abstract::The vomeronasal system (VNS) has been extensively studied within specific animal families, such as Rodentia. However, the study of the VNS in other families, such as Canidae, has long been neglected. Among canids, the vomeronasal organ (VNO) has only been studied in detail in the dog, and no studies have examined the ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13254
更新日期:2020-11-01 00:00:00
abstract::The study aim was to explore the anatomy, histopathology, and molecular biological function of the fascias posterior to the interperitoneal colon and its mesocolon to provide information for improving complete mesocolic excision. To accomplish this aim, we performed intraoperative observations in 60 interperitoneal co...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12066
更新日期:2013-08-01 00:00:00