Abstract：
:The pectoralis muscle from growing house sparrows was investigated using linear, gravimetric, histological and ultrastructural techniques. The structure of the muscle at different stages of development was discussed in relation to known behavioural activities, such as the onset of regular wing exercising and thermogenic shivering in the nestlings. Fibres in the pectoralis muscle of birds about to fledge (15 day nestlings) were similar in composition to fibres in muscles from fully fledged juveniles, with two exceptions. Firstly, numerous lipid droplets had accumulated adjacent to mitochondria in fibres from the pectoralis muscle of the nestlings. This lipid could act as a readily available source of energy for the birds on fledging. Secondly, masses of ribosomes and irregularly shaped myofibrils were present, indicating the continued elaboration of the contractile apparatus in fibres from the pectoralis muscle of the 15 day nestlings. The inefficient flight of newly fledged house sparrows may be accounted for by the size of the pectoralis muscle relative to total body weight. The total contractile material in the muscle of the birds about to fledge was estimated to be 60% or less of that found in fully fledged juveniles, while the body weight was nearly that of an adult bird.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Jones MMsubject
Has Abstractpub_date
1982-12-01 00:00:00pages
719-31issue
Pt 4eissn
0021-8782issn
1469-7580journal_volume
135pub_type
杂志文章abstract：:The anterolateral ligament, a distinct structure connecting the lateral femoral epicondyle to the anterolateral proximal tibia, is gaining attention because of its possible function in ensuring internal rotational stability of the tibia. To study the prevalence and precise anatomical characteristics of the anterolater...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12826
更新日期：2018-08-01 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
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：:The effect of serum prolactin elevation on the growth and development of the rat breast was investigated. Oral administration of the dopamine antagonist, perphenazine, led to a 5-10-fold elevation of serum prolactin after two days of treatment which was maintained for the 54 days of study. A significant (P less than 0...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1989-02-01 00:00:00
abstract：:A new type of magnetic resonance imaging analysis, based on fusion of three-dimensional reconstructions of time-to-peak parametric maps and high-resolution T1-weighted images, is proposed in order to evaluate the perfusion of selected volumes of interest. Because in recent years a wealth of data have suggested the cru...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2006.00659.x
更新日期：2007-01-01 00:00:00
abstract：:A qualitative study by light and electron microscopy was undertaken on the liver of the brown trout, Salmo trutta fario. Vessels and bile ducts were observed to be scattered without any apparent order within the parenchyma. Venous profiles appeared either isolated or included in 'venous-arteriolar tracts' (VAT) and 'v...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1994-10-01 00:00:00
abstract：:The development of Schmidt-Lanterman incisures was investigated in the rat sural nerve during an active phase of postnatal myelination (5-21 days post partum). Two distinct populations of incisures were recognised and the following nomenclature for their developmental stages is proposed. Primary incisures which appear...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-02-01 00:00:00
abstract：:The blood supply of the symphysis pubis is still the subject of some debate. Classic anatomy books state that this joint is avascular, whereas some published works have shown blood vessels in young specimens. As several articular discs such as the knee menisci are known to have blood vessels in their peripheries, we d...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.0021-8782.2004.00271.x
更新日期：2004-03-01 00:00:00
abstract：:Invasive species are a global scourge and often negatively impact native species. Understanding the expansion and dispersal limits of these species is essential. As previous studies have demonstrated increased locomotor performance for populations at the edge of the range of expanding populations, studies of locomotio...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13063
更新日期：2019-12-01 00:00:00
abstract：:Guinea-pig ovarian follicles were studied by light and electron microscopy. All freshly ruptured follicles showed small blood vessels within the stratum granulosum as well as amongst the cells of the theca interna. The evidence suggests that the marked increase in the size of the preovulatory follicle stretches the ba...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1979-01-01 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：: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：:Developing Xenopus embryos treated during gastrulation with 22 micrograms/l of salmar calcitonin in the ambient water develop into larvae exhibiting a decrease in interocular distance. In view of the hypocalcaemic properties of calcitonin and the importance of calcium ions in cell aggregation, this phenomenon has been...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
abstract：:The structure of the gonad primordia is described in the embryos of three species of poeciliid fish. Prior to the sexualisation of the germ cells, a dimorphism exists based upon the gonadal somatic features. This serves as a basis for distinguishing between male and female specimens. Presumptive males are characterise...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1985-03-01 00:00:00
abstract：:The anatomy of the hypothalamus includes many nuclei and a complex network of neurocircuits. In this context, some hypothalamic nuclei reside closer to the blood-brain barrier, allowing communication with the peripheral organs through some molecules, such as leptin. Leptin is considered the main adipokine for energy h...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13342
更新日期：2020-10-22 00:00:00
abstract：:One of the most prominent features of the cranial component of the temporomandibular joint (TMJ) is the articular eminence (AE). This bar of bone is the primary surface upon which the condyle translates and rotates during movements of the mandible, and is therefore the primary point at which forces are transmitted fro...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2011.01424.x
更新日期：2011-11-01 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：:Cells migrating from the neural crest are known to septate the outflow tract of the developing heart, and to contribute to the formation of the arterial valves, their supporting sinuses, the coronary arteries and cardiac neural ganglia. Neural crest cells have also been suggested to contribute to development of the ve...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2007.00833.x
更新日期：2008-01-01 00:00:00
abstract：:This study analyses the evaluation of tomographic indicators of tibia structure, assuming that the usual loading pattern shifts from uniaxial compression close to the heel to a combined compression, torsion and bending scheme towards the knee. To this end, pQCT scans were obtained at 5% intervals of the tibia length (...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2009.01201.x
更新日期：2010-04-01 00:00:00
abstract：:It has been shown that gibbons are able to brachiate with very low mechanical costs. The conversion of muscle activity into smooth, purposeful movement of the limb depends on the morphometry of muscles and their mechanical action on the skeleton. Despite the gibbon's reputation for excellence in brachiation, little in...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2009.01109.x
更新日期：2009-09-01 00:00:00
abstract：:Seminiferous tubules develop from sex cords, which are embryonic structures with simple C-shaped arches. Histologically, the epithelium of adult mouse seminiferous tubules has been divided into 12 stages based on the associations of spermatogenic cells in four cycles of spermatogenesis. However, the gross characterist...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12375
更新日期：2015-11-01 00:00:00
abstract：:Standard immunohistochemical methods were used to detect the presence of vimentin, cytokeratin 8, cytokeratin 18, macrophages and Langerhans cells in the human tonsillar epithelium in formalin-fixed and frozen tissue specimens. Vimentin detection was restricted to infiltrating cells of the lymphoid series, dendritic a...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2001.19960663.x
更新日期：2001-12-01 00:00:00
abstract：:The neuromuscular junction (NMJ) is the highly specialised peripheral synapse formed between lower motor neuron terminals and muscle fibres. Post-synaptic acetylcholine receptors (AChRs), which are found in high density in the muscle membrane, bind to acetylcholine released into the synaptic cleft of the NMJ, thereby ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.13228
更新日期：2020-10-01 00:00:00
abstract：:Age-related changes are reported in the rat suprapatella: a fibrocartilage that resists compression of the quadriceps tendon against the femur in the flexed knee. The suprapatella was studied by histology, immunohistochemistry and electron microscopy in rats aged 11-14 weeks, and 12, 15, 18 and 24 months. Type II coll...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1991-12-01 00:00:00
abstract：:In the spinotrapezius muscle of the rat and the mouse approximately equal proportions of A,B and C fibres are present. The spinotrapezius therefore contains a lower proportion of B fibres than are known to be present in soleus, but a higher proportion than in tibialis anterior. These results are consistent with the fu...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1977-02-01 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：:By relating an animal's morphology to its functional role and the behaviours performed, we can further develop our understanding of the selective factors and constraints acting on the adaptations of great apes. Comparison of muscle architecture between different ape species, however, is difficult because only small sa...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2011.01383.x
更新日期：2011-08-01 00:00:00
abstract：:A series of semen samples from recently fertile men was obtained by masturbation. They were washed and placed in short term culture in BWW medium, and labelled either with tritiated uridine or tritiated tyrosine. Control samples were labelled in the presence of actinomycin D and puromycin respectively, and examined by...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1996-02-01 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：:A study of the attachments of the musculotendinous fibres of the lumbar erector spinae muscle shows that it is made of two parts: a superficial or costal part, and a deep or vertebral part. The superficial part arises by small fleshy slips from the posterior (superficial) surface as well as the rostral and lateral mar...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1986-02-01 00:00:00
