Abstract:
:The translocation of mitochondria towards the primitive inner segment of the cones in the tree shrew Tupaia belangeri was investigated by transmission electron microscopy. Throughout ontogeny the migrating mitochondria were codistributed with cytoplasmic microtubules which were preserved after the application of conventional preparation techniques for transmission electron microscopy. Both the basal body of the connecting cilium and the second centriole located in the vicinity of the basal body were demonstrated to act as microtubule-organising centres (MTOCs) from which axonemal and cytoplasmic microtubules originated. The megamitochondria in the inner segment of the retinal cones of Tupaia are unique among mammals with respect to their extraordinary size and to their ordered distribution characterised by longitudinal and radial size-gradients within developing and mature cone inner segments. Thus the consistent finding of microtubules and MTOCs in the structurally polarised cones represents an extreme example of the capacity of cells to regulate the transport and distribution of organelles.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Knabe W,Kuhn HJsubject
Has Abstractpub_date
1996-10-01 00:00:00pages
383-91eissn
0021-8782issn
1469-7580journal_volume
189 ( Pt 2)pub_type
杂志文章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::It is known that removal of one eye in the rat in early postnatal life results in an aberrant ipsilateral projection from the remaining eye. We have estimated the number of optic nerve fibres in 36 days old Black and White Hooded rats that had been unilaterally enucleated at birth. There was no significant difference ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1991-02-01 00:00:00
abstract::A cutaneous branch of the suprascapular nerve was observed in 6 arms from 5 (4 male and 1 female) out of 61 Japanese cadavers. The suprascapular nerves with a cutaneous branch arose from essentially normal brachial plexuses. Every suprascapular nerve with a cutaneous branch had a normal course, and gave rise to the cu...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1980-01-01 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::Natural loading of the calcanei of deer, elk, sheep and horses produces marked regional differences in prevalent/predominant strain modes: compression in the dorsal cortex, shear in medial-lateral cortices, and tension/shear in the plantar cortex. This consistent non-uniform strain distribution is useful for investiga...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2011.01428.x
更新日期:2011-12-01 00:00:00
abstract::This study examined NADPH-d and nNOS expression in the SCG of hamsters. By light microscopy, numerous NADPH-d/NOS positive processes were widely distributed in the ganglion. Ultrastructurally, the NADPH-d reaction product was associated with the membranous organelles of neuronal soma, dendrites, myelinated fibres, sma...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.2000.19730461.x
更新日期:2000-10-01 00:00:00
abstract::Piecemeal degranulation (PMD) has been recognized in two cases of human pheochromocytoma from the adrenal medulla, which were studied by transmission electron microscopy. Tumour pheochromocytes presented a highly characteristic cytoplasmic admixture of normal resting granules, swollen granules with eroded matrices and...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.0021-8782.2005.00365.x
更新日期:2005-01-01 00:00:00
abstract::The aortic plexus is a network of sympathetic nerves positioned along the infrarenal abdominal aorta. Recently, we characterized the aortic plexus and its ganglia (inferior mesenteric, left/right spermatic, and prehypogastric ganglion) in males; however, the literature minimally describes its anatomy in females. In th...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12436
更新日期:2016-05-01 00:00:00
abstract::Wallerian degeneration and dying-back pathology are two well-known cellular pathways capable of regulating the breakdown and loss of axonal and synaptic compartments of neurons in vivo. However, the underlying mechanisms and molecular triggers of these pathways remain elusive. Here, we show that loss of translation el...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2008.01007.x
更新日期:2008-12-01 00:00:00
abstract::Mammalian Langerhans cells (LC) are epidermal dendritic cells which originate in bone marrow and migrate toward the T cell area of lymph nodes, where they act as professional antigen-presenting cells. A variety of cell surface markers, such as the ectoenzyme adenosine triphosphatase (ATPase), Ia and CDla antigens, hav...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.2001.19940493.x
更新日期:2001-10-01 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::Primates have shoulders adapted to a wide range of locomotor functions from terrestrial pronograde quadrupedalism to highly arboreal suspensory behaviours. The shape of the scapula tightly follows these functional differences. Previous analyses of primate postcrania, including the scapula, indicate that quadrupedal mo...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2006.00639.x
更新日期:2006-11-01 00:00:00
abstract::Data are presented on the postnatal growth of the mouse bladder. Both bladder size (measured as surface area) and bladder wet weight increase steadily with age, respectively reaching 2.5 times and 4 times their newborn values by the age of ten weeks. Despite this growth, which may be due principally to non-urothelial ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1985-12-01 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 knee joint consists of multiple interacting tissues that are prone to injury- and disease-related degeneration. Although much is known about the structure and function of the knee's constituent tissues, relatively little is known about their cellular origin and the mechanisms governing their segregation. To invest...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2008.00966.x
更新日期:2008-11-01 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::Complex I is one of the respiratory chain enzymes related to NADH dehydrogenase and is an encoded gene product derived from both nuclear and mitochondrial genomes. Transcription levels of ND1 (mitochondrial) and 51 kDa (nuclear) subunits of complex I in the postnatal development of the intrinsic muscle in rat tongues ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.2003.00152.x
更新日期:2003-02-01 00:00:00
abstract::Maternal intraperitoneal administration of 1 mg/kg 5-azacytidine to pregnant S1c:ICR mice on gestational Day 7.5 resulted in a high incidence of exencephalic offspring. Histological examination of untreated 7.5 days mouse embryos revealed that the head folds were formed in the anterior halves of the embryos, whereas t...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1985-05-01 00:00:00
abstract::Exposure of male Albino Swiss rats to the nonsteroidal antiandrogen flutamide during the period from gestational day (d) 10 to birth resulted in feminisation of the external genitalia and the suppression of growth of the male reproductive tract. In adulthood, testes were found to be located in diverse positions. True ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1997.19040577.x
更新日期:1997-05-01 00:00:00
abstract::On the basis of its internal structure, the ball of the foot can be divided into three transverse areas, each with a different mechanical function: (1) an area proximal to the heads of the metatarsals in which the retinacula cutis are developed into a series of transverse bands, and in which the deep fibres of the pla...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1976-07-01 00:00:00
abstract::Facial size reduction and facial retraction are key features that distinguish modern humans from archaic Homo. In order to more fully understand the emergence of modern human craniofacial form, it is necessary to understand the underlying evolutionary basis for these defining characteristics. Although it is well estab...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2009.01162.x
更新日期:2010-01-01 00:00:00
abstract::Two endocrine cell types were found in the metaplastic epithelium of gall bladders removed for gall stones. The endocrine cell type I resembled the EC (enterochromaffin) cell of the normal stomach mucosa. The homogeneous and electron-dense secretory granules were variable in size and shape and mainly located in the su...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1975-11-01 00:00:00
abstract::Providing formative assessment opportunities has been recognised as a significant benefit to student learning. The outcome of any formative assessment should be one that ultimately helps improve student learning through familiarising students with the levels of learning required, informing them about gaps in their lea...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/joa.12117
更新日期:2014-03-01 00:00:00
abstract::Scarring, leading to impaired function, growth and appearance, is a major problem following many forms of surgery. Fetal wounds, unlike those in the adult, are characterised by a reduced growth factor profile and the absence of scar tissue (Whitby & Ferguson, 1991 a, b). The antiparasitic drug, suramin (a heparin anal...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1995-02-01 00:00:00
abstract::The rete testis in the domestic fowl (Gallus gallus domesticus), Japanese quail (Coturnix coturnix japonica), guinea-fowl (Numida meleagris galeata) and drake (Anas platyrhynchos) was studied histologically and with both the scanning and transmission electron microscopes. All the birds have rete epithelial cells varyi...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1982-08-01 00:00:00
abstract::Internal cranial anatomy is a challenging area to study in fossilized skulls because of small sample sizes and varied post-mortem preservational alterations. This difficulty has led to the lack of correspondence between results obtained from direct osteological observation and from more indirect reconstruction methods...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2011.01427.x
更新日期:2011-12-01 00:00:00
abstract::The fabella is a sesamoid bone located in the gastrocnemius behind the lateral femoral condyle. In humans, fabellae are 3.5 times more common today than they were 100 years ago, with prevalence rates varying between and within populations. In particular, fabellae have been assumed to be more common in Asians than non-...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13091
更新日期:2020-02-01 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::Elastic fibres, which are intimately associated with collagen, a major component of the urethra, have been assumed to contribute to the resting urethral closure pressure. The Miller stain for elastin was used to demonstrate elastic fibres in cryostat sections of guinea pig bladder base, vesicourethral junction (VUJ) a...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1999.19530447.x
更新日期:1999-10-01 00:00:00
abstract::The arteries of the skin have been postulated to form a profound plexus at the dermal/hypodermal junction and a superficial plexus in the papillary dermis. Our article aims to rebut this concept and to provide an alternative description of the arrangement of the dermal arteries. Employing a novel technique, we produce...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12113
更新日期:2013-12-01 00:00:00