Abstract:
:The horizontal and vertical diameters of the pedicles of the lumbar vertebrae were measured from plain anteroposterior radiographs of the lumbar spines of male and female subjects aged from 10 to 65 y. The results showed that there were significant differences between the pedicle diameters of males and females. Horizontal diameters ranged from 7.4 to 13.6 mm in females and from 7.5 to 14.2 mm in males. Female vertical diameters ranged from 14.2 to 18.2 mm whilst male vertical diameters ranged from 14.8 to 20.7 mm. Generally, there was a cephalocaudal increase of diameters in both sexes. Significant age-related variations of pedicle diameters were noted at all segmental levels. Within the adolescent group (10-19.9 y), the diameters of the 10-14.9 y group and 15-19.9 y group differed significantly (P < 0.001). When the pedicle diameters of the individual age groups were compared, the pedicles of the 10-19.9, 20-29.9, 30-34.9, 40-49.9, and 50+ y groups were found to be significantly different from each other. The evidence suggests that pedicle diameters undergo continuous change throughout the age range studied. The changes are characterised by increase of diameters in some age groups and decrease in others, but there was an overall increase of both vertical and horizontal diameters as the age groups were followed from the youngest to the oldest. The pattern of variation with age differed for horizontal and vertical diameters. After the 5th decade, female horizontal and vertical diameters showed a tendency to increase while male diameters decreased.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Amonoo-Kuofi HSsubject
Has Abstractpub_date
1995-04-01 00:00:00pages
321-8eissn
0021-8782issn
1469-7580journal_volume
186 ( Pt 2)pub_type
杂志文章abstract::Previous work, almost four decades ago, showed that hydrocortisone (HC) treatment reduces the number of skeletogenic condensations that give rise to the scleral ossicles in the chicken eye. The scleral ossicles are a ring of overlapping intramembranous bones, the sclerotic ring, and are present in most reptiles, inclu...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12744
更新日期:2018-02-01 00:00:00
abstract::A symposium on extramedullary haematopoiesis was held on 11-12 September 1996 at the University of St Andrews. The following are abstracts of papers and posters presented at the meeting. ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1997.19020311.x
更新日期:1997-02-01 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::A quantitative analysis of the motor innervation of intrafusal muscle fibres is described, based on teased silver-impregnated spindles of the tenuissimus muscle of the cat. Included in the analysis are the number and distribution of intrafusal branches of both skeletofusimotor (beta) and purely fusimotor (gamma) axons...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
abstract::Following the discovery that the proto-oncogene protein kinase B (PKB) functions as a downstream element in signalling from phosphoinositide 3'-kinase (PI3-kinase) (Burgering & Coffer, 1995), PKB has been shown to mediate a diverse array of PI3-kinase dependent cellular responses. Most recently PKB-dependent phosphory...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1046/j.1469-7580.2000.19740571.x
更新日期:2000-11-01 00:00:00
abstract::Stem cells hold great promise for regenerative medicine but remain elusive in many tissues, including the small intestine, where it is well accepted that the epithelium is maintained by intestinal stem cells located in the crypts. The lack of established markers to prospectively identify intestinal stem cells has nece...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/j.1469-7580.2008.00925.x
更新日期:2008-07-01 00:00:00
abstract::Since their discovery in different human tissues by Zimmermann in 1898, primary cilia have been found in the vast majority of cell types in vertebrates. Primary cilia are considered to be cellular antennae that occupy an ideal cellular location for the interpretation of information both from the environment and from o...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12360
更新日期:2015-10-01 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::In the development of Hynobius dunni there are two consecutive generations of the tongue and two generations of gustatory organs (taste buds and taste disks). The anlage of the developing secondary tongue appears just in front of the free ending of the primary tongue beginning at the larval developmental stage 62. Fro...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.2002.00076.x
更新日期:2002-07-01 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::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::The feet of apes have a different morphology from those of humans. Until now, it has merely been assumed that the morphology seen in humans must be adaptive for habitual bipedal walking, as the habitual use of bipedal walking is generally regarded as one of the most clear-cut differences between humans and apes. This ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12201
更新日期:2014-08-01 00:00:00
abstract::The penile bone and anterior process were made anorganic for scanning electron microscopy. The mature bone has a basal bulb and a long, cylindrical shaft bevelled at its tip to fit under a matching surface on the anterior process, giving rise to a bevelled 'suture'. A rough, resting, Sharpey-fibre bone surface covers ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1977-12-01 00:00:00
abstract::Bundles of collagen fibrils, elastic fibres and fibroblasts are organized into a network that lies in the plane of a large portion of the bat wing. By ultrastructural (TEM and SEM) and biochemical analyses it was found that individual bundles of the net are similar to elastic ligaments. Although elastic fibres predomi...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1978-05-01 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::A total histological grade does not necessarily distinguish between different manifestations of cartilage damage or degeneration. An accurate and reliable histological assessment method is required to separate normal and pathological tissue within a joint during treatment of degenerative joint conditions and to sub-cl...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2012.01513.x
更新日期:2012-07-01 00:00:00
abstract::The human body has evolved to maintain homeostasis through the covering of skin and mucous membranes, which separate the internal environment from the harsh and variable external milieu. Few structures naturally penetrate these coverings, and teeth are the only exception in human beings. Attempts to breach these barri...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2006.00595.x
更新日期:2006-07-01 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::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::In an attempt to clarify the nature of the human cemento-dentinal junction, ground sections of incompletely formed and fully formed extracted teeth were prepared and their histology compared with their microradiographic appearances. The results showed that incompletely formed teeth possess distinctive surface layers o...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1976-11-01 00:00:00
abstract::The developing cortical surfaces of long bones are sculpted and modeled by periosteal osteoclasts and osteoblasts. These surfaces also receive the insertions of tendons and ligaments, and these insertion sites too are modeled to form the root systems that anchor them into the cortical bone. The regulatory molecules th...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12145
更新日期:2014-04-01 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::The distribution of mRNAs and antigens of tissue type (t) and urokinase type (u) plasminogen activators (PA) plus their corresponding inhibitors, type-1 (PAI-1) and type-2 (PAI-2) were studied in human and rhesus monkey placentae by in situ hybridisation and immunocytochemistry. Specific monkey cRNA and antibodies aga...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1999.19420183.x
更新日期:1999-02-01 00:00:00
abstract::The role of the neural arch in weight transmission in the cervical and upper thoracic regions of the vertebral column has been investigated. Measurements at the levels of C2, C4, C6, C7, T1 and T5 vertebrae were made in 44 adult male vertebral columns. At each level, the area of the inferior surface of the body was co...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1986-10-01 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 ontogeny of the nasolacrimal ducts (NLD) and canals (NLC) are investigated in strepsirrhine and haplorhine primates. Developmental series of serially sectioned fetal, perinatal and adult specimens, in combination with juvenile and adult skulls subjected to high-resolution computed tomography, reveal that the verti...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2006.00682.x
更新日期:2007-02-01 00:00:00
abstract::The mammalian cochlea is a remarkable sensory organ, capable of perceiving sound over a range of 10(12) in pressure, and discriminating both infrasonic and ultrasonic frequencies in different species. The sensory hair cells of the mammalian cochlea are exquisitely sensitive, responding to atomic-level deflections at s...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/joa.12314
更新日期:2016-02-01 00:00:00
abstract::Networks linking single genes to multiple phenotypic outcomes can be founded on local anatomical interactions as well as on systemic factors like biochemical products. Here we explore the effects of such interactions by investigating the competing spatial demands of brain and masticatory muscle growth within the hyper...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13393
更新日期:2021-01-13 00:00:00
abstract::Although laryngeal morphology often reflects adaptations for vocalization, the structural consequences of selection for particular aspects of vocal behavior remain poorly understood. In this study, we investigated the effects of increased ultrasonic calling in pups on the adult larynx morphology in selectively bred ra...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13366
更新日期:2021-01-21 00:00:00
abstract::The common internal iliac artery in the sheep gives rise to the arteries which are the primary source of blood to the uterus. We have used a vascular occluder placed on the common internal iliac artery of the pregnant sheep to induce and study the effects of chronic fetal hypoxaemia. We have noted that uterine blood f...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1995-08-01 00:00:00