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 considered how these two cardiac muscle architectures are attached to form a functional working unit. The present study considers how the spindle-like cardiomyocytes, unlike the more rectangular structure of adult mammalian cardiomyocytes, form perpendicular connections between the two muscle layers that withstand the mechanical forces generated during cardiac systole and permit a simultaneous, coordinated contraction of both ventricular components. Therefore, hearts of rainbow trout (Oncorhynchus mykiss) and sockeye salmon (Oncorhynchus nerka) were investigated in detail using scanning electron microscopy (SEM) and various light microscopic techniques. In contrast to earlier suggestions, we found no evidence for a distinct connective tissue layer between the two muscle architectures that might 'glue' together the compact and the spongy myocardium. Instead, the contact layer between the compact and the spongy myocardium was characterized by a significantly higher amount of desmosome-like (D) and fascia adhaerens-like (FA) adhering junctions compared with either region alone. In addition, we observed that the trabeculae form muscular sheets of fairly uniform thickness and variable width rather than thick cylinders of variable diameter. This sheet-like trabecular anatomy would minimize diffusion distance while maximizing the area of contact between the trabecular muscle and the venous blood as well as the muscle tension generated by a single trabecular sheet.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Pieperhoff S,Bennett W,Farrell APdoi
10.1111/j.1469-7580.2009.01129.xsubject
Has Abstractpub_date
2009-11-01 00:00:00pages
536-47issue
5eissn
0021-8782issn
1469-7580pii
JOA1129journal_volume
215pub_type
杂志文章abstract：:The extracellular matrix (ECM) of connective tissues enables linking to other tissues, and plays a key role in force transmission and tissue structure maintenance in tendons, ligaments, bone and muscle. ECM turnover is influenced by physical activity, and both collagen synthesis and metalloprotease activity increase w...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：10.1111/j.1469-7580.2006.00549.x
更新日期：2006-04-01 00:00:00
abstract：:Bone formation occurred ten days after transplantation of guinea-pig urinary bladder wall to the anterior abdominal wall. A quantitative analysis showed that the bone which formed in the tissues of the transplant site grew rapidly during the following week. Thereafter, bone growth slowed and remodelling became evident...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1982-08-01 00:00:00
abstract：:The periodontal ligament was examined by light microscopy at 3 different levels (apical, intermediate, coronal) on the 4 root sides of 43 extracted teeth. Epithelial rests were localised and serial LM and EM sections showed a close apposition (up to 0.03 microns) between Ruffini-like and free nerve endings and the bas...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1993-04-01 00:00:00
abstract：:The aim of this study was to design, develop and employ a method for the acquisition of a significant data base of thickness measurements. The integration of standard histological techniques (step serial sectioning), modern computer technology and a personally developed software package (specifically designed for thic...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：:Amoeboid microglial cells (AMC) in the corpus callosum were selectively labelled following a single intraperitoneal (i.p.) injection of the fluorescent dye, rhodamine isothiocyanate (RhIc) into postnatal rats. The frequency of RhIc-labelled cells varied with age, with the largest number occurring in 7-d-old animals. T...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1993-02-01 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：: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：:Abstract The skull and the face are directly related, and skeletal morphology influences the facial proportions, muscle structure, feature formation and hence detailed facial appearance. Each face is unique and we are each capable of perceiving very subtle differences between faces in order to carry out personal recog...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/j.1469-7580.2008.00972.x
更新日期：2008-11-27 00:00:00
abstract：:Arguably, the gold standard of biological repair of articular cartilage lesions is autologous chondrocyte transplantation. Although the clinical outcomes appear to range between good and excellent in most cases, there are, nevertheless, both clinical and biological challenges that remain to improve rehabilitation and ...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：10.1111/j.1469-7580.2006.00624.x
更新日期：2006-10-01 00:00:00
abstract：:The study of human anatomy can be found throughout the rich history of Persia. For thousands of years, morphological descriptions derived from this part of the world have contributed to and have helped form our current anatomical knowledge base. In this article we review the major influential Persian periods and the i...
journal_title：Journal of anatomy
pub_type： 历史文章,杂志文章
doi：10.1111/j.1469-7580.2007.00711.x
更新日期：2007-04-01 00:00:00
abstract：:The structure of the sinuatrial nodal artery has been investigated in young and old rats. The nodal artery is derived from the internal thoracic artery, runs centrally though the node and supplies it by several branches. An extensive cuff of nodal cells is seen within the adventitia of the artery and its branches adja...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1980-06-01 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：:An immuno-epifluorescence microscopic study of first trimester human chorionic villi has revealed different patterns of distribution for intermediate filament proteins. Keratin staining was restricted to the trophoblastic epithelium. The protein was shown to be concentrated into desmosome-containing apical and basal c...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1990-04-01 00:00:00
abstract：:The surface area and volume of 79 human fetuses (body weight 8-4080 g) were estimated by use of a geometric method. It was found that body surface area increased by a factor of about 70, and body volume by a factor of about 400, during the fetal period. Surface area (S, in cm2) was related to body weight (W, in g) and...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1983-09-01 00:00:00
abstract：:Femoral neck fractures are a major cause of morbidity and mortality in elderly humans. In addition to the age-related loss of cancellous bone, changes to the microstructure and morphology of the metaphyseal cortex may be a contributing factor in osteoporotic hip fractures. Recent investigations have identified a hyper...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2001.19820153.x
更新日期：2001-02-01 00:00:00
abstract：:The entire head and neck of a wild adult male Mongolian gazelle (Procapra gutturosa) was dissected with special reference to its enlarged larynx. Two additional adult male specimens taken from the wild were analysed by computer tomography. The sternomandibularis, omohyoideus, thyrohyoideus and hyoepiglotticus muscles ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2003.00232.x
更新日期：2003-11-01 00:00:00
abstract：:Horns are permanent structures projecting from the head of bovids, consisting of a bony horncore covered with a layer of skin and then a sheath of keratinous material showing variability of growth intensity based on nutrition. From the point of view of the horn's mechanical properties, the keratin sheath has been wide...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1111/joa.12708
更新日期：2018-01-01 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：:The proximal stump of the optic nerve was examined by electron microscopy from 1 d to 8 wk (dpo/wpo) after intraorbital transection. At 1 dpo a layer of axonal, cytoplasmic and myelin debris approximately 15 microns thick was present at the cut end. A zone approximately 25 microns thick of abnormal and partly degenera...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1994-12-01 00:00:00
abstract：:The number and topographic distribution of the profiles of degenerating primary afferent fibres were determined within the rat dorsal column 3-4 weeks after division of the lumbar and S2 dorsal roots. The degenerating fibres were identified in toluidine blue-stained 1 micron transverse sections taken at different spin...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1987-08-01 00:00:00
abstract：:Collagen fibrils from different rat tendons have been investigated by freeze-fracture and transmission electron microscopy. In all cases, marked differences in both fibril morphology and subfibrillar organisation have been consistently found between the tendon core (composed of large and heterogeneous fibrils comprisi...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:The fine structure of the elastic cartilage of the pinna has been examined in young rabbits aged from 1 day to 1108 days. Changes associated with growth and development are related not only to age but also to the actual situation in the pinna. In the midline, progressive changes are seen from the tip to the base. The ...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1977-04-01 00:00:00
abstract：:The morphological features of odontoblast processes in young kitten odontoblasts were studied by thin section and freeze-fracture electron microscopy. Freeze-fracture replication revealed depressions with particles on the plasma membranes of the proximal parts of odontoblast processes. Comparison with thin sections su...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1984-05-01 00:00:00
abstract：:Although the small intestine of the sheep is relatively mature at birth, there are still vacuolated enterocytes present for at least 2 days in distal regions. In the distal regions, vacuolated cells possess a range of vesicle morphology which might be indicative of at least 2 separate routes for enterocyte handling of...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：
更新日期：1989-10-01 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：:Lymphatics in the diaphragm form a specialised system draining fluid from the peritoneal cavity and returning it to the vascular system. Fluid enters subperitoneal lymphatic lacunae, between muscle fibres of the diaphragm, the lacunae being separated from the peritoneal cavity by a barrier comprising, successively, ly...
journal_title：Journal of anatomy
pub_type： 杂志文章,评审
doi：
更新日期：1995-06-01 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 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：:In the infant the region lateral to the sella turcica which is traditionally termed the 'cavernous sinus' is composed of 3 individual compartments. The aim of this study was to demonstrate a similar compartmentation of the adult cavernous sinus and to identify and quantify the adipose bodies which are located within t...
journal_title：Journal of anatomy
pub_type： 杂志文章
doi：10.1046/j.1469-7580.2000.19740681.x
更新日期：2000-11-01 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
