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 an enlarged fifth distal tarsal. We herein provide extensive new myological and developmental observations on the hooked element of turtles, and re-evaluate its primary and secondary homology using all available lines of evidence. Digital count and timing of development are uninformative. However, extensive myological, embryological and topological data are consistent with the hypothesis that the hooked element of turtles represents a fusion of the fifth distal tarsal with the fifth metatarsal, but that the fifth distal tarsal dominates the hooked element in pleurodiran turtles, whereas the fifth metatarsal dominates the hooked element of cryptodiran turtles. The term 'ansulate bone' is proposed to refer to hooked elements that result from the fusion of these two bones. The available phylogenetic and fossil data are currently insufficient to clarify the secondary homology of hooked elements within Reptilia.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Joyce WG,Werneburg I,Lyson TRdoi
10.1111/joa.12103subject
Has Abstractpub_date
2013-11-01 00:00:00pages
421-41issue
5eissn
0021-8782issn
1469-7580journal_volume
223pub_type
杂志文章,评审abstract：:An autoradiographic study of neuronal and glial production was carried out in the indusium griseum of mice. Most neurons were produced between 13 and 15 days post-conception. One part of the glial population underwent its last or second-last divisions between 14 and 16 days post-conception, while the other continued t...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1978-05-01 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：:The sacroiliac joint (SIJ) is responsible for weight transmission between the spine and lower extremity. However, details of the structure and function of the SIJ remain unclear. In a previous study, we devised a method of quantitatively evaluating the level of degeneration of the SIJ using an age estimation procedure...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12765
更新日期：2018-02-01 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：:Mammalian pregnancy involves remodelling of the uterine epithelium to enable placentation. In marsupials, such remodelling has probably played a key role in the transition from ancestral invasive placentation to non-invasive placentation. Identifying uterine alterations that are unique to marsupials with non-invasive ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13162
更新日期：2020-06-01 00:00:00
abstract：:The extent of neuronal labelling with horseradish peroxidase (HRP) was examined in rat trigeminal motor neurons at various stages of acrylamide intoxication, following HRP uptake by motor nerve endings in the anterior digastric muscle. After 7 days of acrylamide (5 daily injections of 30 mg acrylamide/kg body weight),...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1983-10-01 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 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：:A monoclonal antibody SBU-3 raised against an antigen expressed by the binucleate cells in the trophoblast of the sheep placentome crossreacts with an antigen expressed by binucleate cells in the placenta of the deer and the cow. This monoclonal antibody has been used to study the distribution of this subpopulation of...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1986-08-01 00:00:00
abstract：:Glutamate kills neurons by excitotoxicity, which is caused by sustained activation of glutamate receptors. In recent years, it has been shown that glutamate can also be toxic to white matter oligodendrocytes and to myelin by this mechanism. In particular, glutamate receptor-mediated injury to these cells can be trigge...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：10.1111/j.1469-7580.2007.00733.x
更新日期：2007-06-01 00:00:00
abstract：:The effects of chronic neuromuscular inactivity on the phenotype and size of muscle fibres in a fast ankle extensor (medial gastrocnemius, MG) and a fast ankle flexor (tibialis anterior, TA) muscle of the rat hindlimb were determined. Inactivity was produced by spinal cord isolation (SI), i.e. complete spinal cord tra...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2006.00665.x
更新日期：2007-01-01 00:00:00
abstract：:Continuous tooth replacement is common for tetrapods, but some groups of acrodont lepidosaurs have lost the ability to replace their dentition (monophyodonty). Acrodonty, where the tooth attaches to the apex of the jawbone, is an unusual form of tooth attachment that has been associated with the highly autapomorphic c...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12754
更新日期：2018-03-01 00:00:00
abstract：:Little is known about the embryonic development and variation of the chondrocranium in Crocodylia and there are no works on any Caiman species. Due to the importance of cranial features in the systematics of this clade, investigating the development of the skull in embryonic stages is essential. In this study, we pres...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12968
更新日期：2019-06-01 00:00:00
abstract：:Atrial and ventricular myocardium from young golden hamsters, 3-6 months of age, was examined under the transmission electron microscope, representative samples from each animal having been stained histochemically for acid phosphatase (AP) by a lead precipitation technique. Our observations indicated that AP positive ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-02-01 00:00:00
abstract：:In most mammalian species the cardiac skeleton is composed of coarse collagen fibres, fibrocartilage, and pieces of hyaline cartilage. Bone, the os cordis, is a regular constituent of the ruminant heart. The cardiac skeleton of the otter (Lutra lutra) has not previously been described. The skeleton in 30 otter hearts ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2000.19630485.x
更新日期：2000-04-01 00:00:00
abstract：:Enzymatic degradation followed by lectin application was carried out on specimens of the rabbit oviduct. The sequential application of the glycosidases (neuraminidase, alpha-L-fucosidase, beta-galactosidase and alpha-mannosidase) and lectins (peanut, winged pea, wheat germ and soybean) seem promising as an effective m...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1985-06-01 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：:The primary aim of this study is to broadly evaluate the relationship between cursoriality (i.e. anatomical and physiological specialization for running) and limb bone morphology in lagomorphs. Relative to most previous studies of cursoriality, our focus on a size-restricted, taxonomically narrow group of mammals perm...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12220
更新日期：2014-10-01 00:00:00
abstract：:The sacroiliac joint (SIJ) is a well-known source of low back and pelvic pain, of increasing interest for both conservative and surgical treatment. Alterations in the kinematics of the pelvis have been hypothesized as a major cause of SIJ-related pain. However, definitions of both the range and the extent of physiolog...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12924
更新日期：2019-03-01 00:00:00
abstract：:The gene for spondylo-metaphyseal chondrodysplasia (smc) in the mouse disrupts the formation of growth plate cartilage. No cartilage columns are found in the head of the tibia and secondary centres of ossification appear very late. The number of cells labelled with tritiated thymidine is sharply reduced at 16, 18 and ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1985-05-01 00:00:00
abstract：:Excisional wounds were inflicted on the palatal mucoperiosteum of beagle pups at intervals from 3 to 31 days before the animals were killed, when the animals were perfused and the tissue examined by electron, microscopy. Fibroblasts with the morphological characteristics of myofibroblasts, including bundles of intrace...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1980-05-01 00:00:00
abstract：:The venous collateral flow emanating from and around the renal veins was investigated in the human cadaveric fetus. Experimental venous occlusion was performed along several venous pathways under the sphere of influence of the renal veins in 11 fetuses. Radiological techniques were used to investigate renal venous col...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1995-04-01 00:00:00
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
doi：
更新日期：1976-12-01 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：:The volume and shape (the axial ratio:length/diameter) of mitochondria in periportal and perihepatic hepatocytes from newborn, 5 days old, 10 days old and adult male ddY mice were analysed by quantitative electron microscopy. In newborn animals, the volume and relative histogram of the axial ratio were not significant...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1984-09-01 00:00:00
abstract：:Vascular sympathetic neuroeffector associations have been examined in rat iris arterioles using serial section electron microscopy and reconstruction techniques. Examination of random sections showed that, of all profiles of varicosities (199) seen to lie closer than 4 microns to vascular smooth muscle cells, only a s...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.1998.19210045.x
更新日期：1998-01-01 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 aims of the present study were to determine whether nerves that contain nitric oxide synthase (NOS), calcitonin gene-related peptide (CGRP) or substance P (SP) are present in the human vagina and, if so, to determine the pattern of innervation relative to that of other neurotransmitters, particularly vasoactive in...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1996-06-01 00:00:00
abstract：:Comb and wattle tissues, which consist of layers of epidermis, dermis and central connective tissue, are known to contain sulphated glycosaminoglycans (GAGs) including dermatan sulphate and chondroitin sulphate-dermatan sulphate copolymers. Little is known about distribution of these CAGs in each tissue. The objective...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1996-12-01 00:00:00
abstract：:The natural radiographic appearance of the various bones of the skeleton are described for several strains of laboratory mice. The Harwell substrains of CBA, A and 101 are generally similar and become osteoporotic on ageing. Harwell C57BL have similar, but more delicately chiseled, bones. Harwell C3H mice have bones w...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1976-11-01 00:00:00
