Abstract:
:It is a challenge to understand how barn owls (Tyto alba) reduce noise during flight to be able to hunt small mammals by audition. Several specializations of the wing and the wing feathers have been implicated in noise reduction. What has been overlooked so far are the fringes at the inner vanes of remiges. We demonstrated, by using precise imaging techniques combined with morphometric measurements and air-flow studies, that these fringes merge into neighboring feather vanes by gliding into the grooves at the lower wing surface that are formed by parallel-oriented barb shafts. The connection of adjacent feathers results in a smooth lower wing surface and thus reduces sharp and noisy edges. This finding sheds new light on the mechanisms underlying noise reduction of flying owls.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Bachmann T,Wagner H,Tropea Cdoi
10.1111/j.1469-7580.2012.01504.xsubject
Has Abstractpub_date
2012-07-01 00:00:00pages
1-8issue
1eissn
0021-8782issn
1469-7580journal_volume
221pub_type
杂志文章abstract::Autism Spectrum Disorders (ASDs) are a heterogeneous group of neurodevelopmental disorders that are diagnosed solely on the basis of behaviour. A large body of work has reported neuroanatomical differences between individuals with ASD and neurotypical controls. Despite the huge clinical and genetic heterogeneity that ...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/joa.12542
更新日期:2017-01-01 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::Cellullar deficits are replenished within the central nervous system (CNS) by progenitors to maintain integrity and recover function after injury. NG2 proteoglycan-expressing progenitors replenish oligodendrocyte populations, but the nature of NG2 proteoglycan may not indicate a restricted population of progenitors. A...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/j.1469-7580.2005.00480.x
更新日期:2005-12-01 00:00:00
abstract::Tarentola annularis is a climbing gecko with a wide distribution in Africa north of the equator. In the present paper, we describe the development of the osteocranium of this lizard, from the first appearance of the cranial elements up to the point of hatching. This is based on a combination of histology and cleared a...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13213
更新日期:2020-09-01 00:00:00
abstract::Salivary mucins MG1 and MG2 have been found in the oral cavity where they perform several functions such as the formation of the mucous layer covering the oral mucosa and teeth. Recent studies have demonstrated their presence in other organs and tissues. The aim of this study was to determine their expression in human...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2008.01018.x
更新日期:2009-01-01 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::Current surgical treatments for degenerative intervertebral disc disease do not restore full normal spinal movement. Tissue engineering a functional disc replacement may be one way to circumvent this limitation, but will require an integration of the different tissues making up the disc for this approach to be success...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2012.01537.x
更新日期:2012-12-01 00:00:00
abstract::Uptake and translocation of particulates across the mucosal barrier of the gastrointestinal (GI) tract is now generally recognised but the effect of pathophysiologically induced changes on this process is less well established. This study evaluated the effect of diabetes mellitus on GI absorption of particles, compari...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1996-12-01 00:00:00
abstract::A comparison of the relative position of the dorsoventral axes of the bases and heads of the metacarpal bones shows that these do not lie in the same plane, and that torsion can therefore be said to exist in these bones. Torsion is such that the heads of the second and third metacarpals appear to be rotated laterally ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1979-09-01 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::The ventricle of the salmonid heart consists of an outer compact layer of circumferentially arranged cardiomyocytes encasing a spongy myocardium that spans the lumen of the ventricle with a fine arrangement of muscular trabeculae. While many studies have detailed the anatomical structure of fish hearts, few have consi...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2009.01129.x
更新日期:2009-11-01 00:00:00
abstract::Degeneration, scar formation and regeneration have been studied after section of the optic nerve in the frog. In the normal optic nerve two types of macroglial cell were identified: astrocytes and oligodendroglia. Degeneration after injury proceeded rapidly in comparison with mammals but did not lead to the production...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1981-09-01 00:00:00
abstract::The present paper reports the results of the first investigation of the semicircular canals in a living, small animal by means of high spatial resolution magnetic resonance imaging. This procedure is noninvasive and allows identification of the endolymphatic and perilymphatic spaces yielding a morphology quite consist...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1992-04-01 00:00:00
abstract::Substantial changes in bone histology accompany the secondary adaptation to life in the water. This transition is well documented in several lineages of mammals and non-avian reptiles, but has received relatively little attention in birds. This study presents new observations on the long bone microstructure of penguin...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12367
更新日期:2015-11-01 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 proportion of total limb length taken up by the individual skeletal elements (limb proportionality), varies widely between species. These diverse skeletal forms have evolved to allow for a range of limb uses and they first emerge as the embryo develops, to achieve the characteristic skeletal architecture of each s...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/joa.12171
更新日期:2014-06-01 00:00:00
abstract::Serial thin sections of the coronal dental pulp of the cat's canine tooth were cut. Parts of the sub-odontoblastic neural plexus were photographed from 100 of the sections. The plexus consists of many slender, predominantly unmyelinated nerve fibres. Many axons are incompletely sheathed by their Schwann cell. Some axo...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1980-05-01 00:00:00
abstract::The frequency with which the gonadal arteries follow a recurrent course, upwards and arching over the renal veins before descending to the gonads, is recorded for the South African Negro. The gonadal arteries follow such a course on the left side in 17, 2% and on the right side in 22% of cases. This incidence for arch...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1981-05-01 00:00:00
abstract::Current nerve tissue engineering applications are adopting xenogeneic nerve tissue as potential nerve grafts to help aid nerve regeneration. However, there is little literature that describes the exact location, anatomy and physiology of these nerves to highlight their potential as a donor graft. The aim of this study...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12341
更新日期:2015-09-01 00:00:00
abstract::How changes in anatomy affect joint biomechanics can be studied using musculoskeletal modelling, making it a valuable tool to explore joint function in healthy and pathological joints. However, gathering the anatomical, geometrical and physiological data necessary to create a model can be challenging. Very few integra...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12877
更新日期:2018-11-01 00:00:00
abstract::Cardiac arrhythmias, notably Wolff-Parkinson-White syndrome, are known to represent a major issue in patients with Ebstein's malformation of the tricuspid valve. Abnormal conducting circuits, however, can also be produced by pathways extending either from the atrioventricular node or the ventricular components of the ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13179
更新日期:2020-07-01 00:00:00
abstract::Hydrocortisone administration in vivo to neonatal mice for seven days led to a significant increase in both the size and the labelling index of extra-adrenal chromaffin tissue (as represented by the para-aortic body) of 8 days old mice. In untreated animals at this age, the para-aortic body was in most cases too small...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1986-02-01 00:00:00
abstract::The aim of the present study was to investigate the ultrastructure of secretory cells in the various regions of the goat oviduct during the follicular and luteal phases of the oestrous cycle. During the follicular phase in the fimbriae, the secretory cells contained small secretory granules with electron-dense matrice...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1046/j.1469-7580.1999.19540515.x
更新日期:1999-11-01 00:00:00
abstract::The present study investigated, by immunohistochemistry, the postnatal occurrence and anatomical localisation of some bone and cartilage proteins and proteoglycans in the rat coronal sutural region. Thirty two Sprague-Dawley rats, four in each group, were killed at ages 3, 5, 8, 10, 15, 30, 50 and 100 days and the sut...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1990-12-01 00:00:00
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 a...
journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/joa.12103
更新日期:2013-11-01 00:00:00
abstract::Human beings stand upright with the chain of balance beginning at the feet, progressing to the lower limbs (ankles, knees, hip joints, pelvis), each of the spinal segments, and then ending at the cranium to achieve horizontal gaze and balance using minimum muscle activity. The details of the alignment and balance of t...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12586
更新日期:2017-05-01 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::The juxtaoral organ was studied using light microscopy in 55 human embryos and 90 fetuses at different stages of development. The juxtaoral organ arises from the epithelium at the bottom of the transverse opening of the primitive mouth during O'Rahilly stage 16 and becomes detached from the epithelium after O'Rahilly ...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2005.00377.x
更新日期:2005-02-01 00:00:00
abstract::A study has been made of the distribution of granulated metrial gland cells in the non-pregnant uterus, in the pre-implantation uterus and in the post-implantation interconceptual uterus of pregnant albino mice. Granulated cells were only rarely seen in the non-pregnant uterus. In the pre-implantation uterus, they wer...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1981-12-01 00:00:00
abstract::Proximal femoral morphology and associated musculature are of special relevance to the understanding of hominoid locomotor systems. Knowledge of bone-muscle correspondence in extant hominoids forms an important comparative basis for inferring structure-function relationships in fossil hominids. However, there is still...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12270
更新日期:2015-03-01 00:00:00