bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vascular Architecture of the Canine Prepuce
Authors: Ninomiya Hiroyoshi , Nakamura Tsunenori 
Published: June 2007

AbstractThe blood supply of the canine prepuce is described as studied with gross dissection and acrylic resin injection casts. The conclusions of this study are based on gross dissection of 10 animals and 12 injection cast preparations. The arterial supply and the venous drainage is described in some detail and compared with similar descriptions by other investigations utilizing similar and varied techniques.
Estudios histoquímico y morfométrico del músculo tibial cranial en perros de diferentes aptitudes dinámicas (galgo, pastor alemán y fox terrier)
Authors: Rodríguez‐Barbudo MA V. , Vaamonde R. , Agüera E. , Carpio M. , Moreno F. , Fuentes S. , Robina A. 
Published: June 2007

AbstractA histochemical and morphometric study of the cranial tibial muscle of the greyhound, the German shephard and the fox terrier was carried out using hematoxyline‐eosin, PAS, Gomori trichrome, SDH, LDH, NADH‐tr and ATPase staining (with pH adjustments to both acidic and basic levels), with the goal of comparing the proportion and distribution of type I and type II fibers within the muscle. Significant differences were found between the three breeds of dogs. It is suggested that these differences are related to the locomotor activities of the three breeds.
Estudio histológico de los vasos linfáticos retroperitoneales de Cebus apella
Authors: de Freitas V. , Pai V. Dall , Gagete E. , Madeira M. C. , Moreira J. E. , Seullner G. 
Published: June 2007

AbstractA histologic study of the retroperitoneal lymph vessels was carried out in the tufted capuchin (Cebus apella). The organization of the intima, media and surrounding adventitia is compared with that of other animals and man.
Estudio comparado del desarrollo Embrionario de Especies ovíparas y una ovovivípara(Gallus gallus, Coturnix c. japónica y Liolaemus tenuis t.)
Authors: Lemus Por , Martín D. R. , Blánquez M. J. , Fuenzalida M. , Illanes J. 
Published: June 2007

AbstractIn a study of the development of two oviparous species (domestic chicken and Japanese quail) and one ovoviviparous species (a common lizard), the relationship to alterations in egg size and weight during incubation was examined. It was observed, as reported by others that the avian egg diminishes in size during incubation, but that the lizard egg increases in size and weight. This investigation examines these relationships and suggests that the increase in the size and weight of the lizard egg is a result of an increase of liquid content. The mechanism is discussed.
Consideraciones sobre el sistema urinario del Gallus gallus –Indian River: II. trayecto y relaciones del uréter con vasos sanguíneos
Authors: Dias S. Mello , Silva P. Pinto E , Campos V.J. M. , Orsi A. M. , Dayoub M. C. Oliveira , Define R. M. 
Published: June 2007

AbstractThe ureter is formed by two collectors, deeply to the renal parenchima, in the craneal pole of tht lobe (intra‐renal ureter) and it runs dorsally to the shunt between the external ‘iliac and caudal rena veins, passes superficially as extra‐renal ureter, in the middle lobe, between the shunt and the cauda renal vein. It lies in close association (lateral) with the caudal renal vein and is ventral to the vein, at tht level of the external sciatic artery. In the caudal lobe it is located dorsally and lies in relation with tht internal iliac artery and its visceral branch.
An Ultrastructural Study of Granulocytic Development in Feline Bone Marrow*
Authors: Canfield P.J. 
Published: June 2007

AbstractGranulocyte development in the bone marrow of foetal cats was studied using cytological smears and transmission electron microscopy. The three types of granulocytes could be distinguished at the promyelocyte stage on the basis of granule content. Neutrophilic promyelocytes had numerous primary (azurophilic) granules while the eosinophilic and basophilic promyelocytes had specific granules. Specific granules had developed in the neutrophil by the myelocyte stage. The appearance of the specific granules was compared to findings in other reports on cat granulocytes, in other animals and in man.
Metallophilic and PAS‐positive Cells of the Rat Thymus, Topographical Distribution and Histological Properties after the Application of Cyclophosphamide
Authors: Miliçeviç N. M. , Miliçeviç Z. , Piletiç O. , Mujoviç S. , Ninkov V. 
Published: June 2007

AbstractThe topographical distribution, number and histological properties of metallophilic and PAS‐positive cells were investigated during the process of spontaneous regeneration of the thymic tissue after the application of consecutive doses of Cyclophosphamide (5 ± 60 mg/kg). The aim of the study was to elucidate the relationship between these cell types which are both localized in the cortico‐medullary zone of the normal rat thymus.
Fine Structure of Spermatogenesis and Sertoli Cells (Epitheliocytus sustentans) in the Bull
Authors: Ekstedt E. , Söderquist L. , Plöen L. 
Published: June 2007

AbstractThe fine structure of spermatogenesis and Sertoli cells in bulls has been described. New observations and data from the literature have been compiled to give a comprehensive description of the complicated differentiation processes and cellular relations in the seminiferous epithelium.
Sacroiliac Joint of the Horse 1. Gross morphology
Authors: Dalin G. , Jeffcott L. B. 
Published: June 2007

AbstractA total of 22 morphological features were described in the sacroiliac joints of 41 horses which had no history of any low back condition. Some dramatic differences in both sacral and iliac aspects of joint shape and articular surfaces were seen according to age. These findings were thought to be due to progressive cartilaginous degeneration. Only minor significant differences were seen between left and right sacroiliac joints or between breeds and sex. The iliac surface was more prone to degenerative change. Ankylosis of the joints was not recorded and the incidence of articular or para‐articular spur formation was low.
Sacroiliac Joint of the Horse 2. Morphometric features
Authors: Dalin G. , Jeffcott L. B. 
Published: June 2007

AbstractThe sacroiliac joints were collected from 41 horses from late fetal life to 14 years of age. The sacral and iliac articular surfaces were analysed by morphometry with regard to area, length, width and form factor. The body weights of the animals varied from 10 to 550 kg and the sacral articular surface area from 1.0 to 17.8 cm2. Highly significant correlations were found between articular surface dimensions and body weights. Accordingly, the relative size of the joints decreased with increasing body weight/age. The sacral and iliac measurements were essentially comparable. No consistent left‐right sidedness was found and no significant sex or breed differences were present.
New Morphological Aspects of the Bipolar Cell in the Chick Embryo: The Accessory Prolongation
Authors: Quesada A. , Genis‐Galvez J. M. 
Published: June 2007

AbstractUsing the silver‐staining techniques of Golgi Colonnier and Golgi‐Stensaas, we have found a new morphological datum in the study and understanding of the structure of the bipolar cell in the chick retina. We describe the existence of a prolongation, possibly dendritic in nature, which sets out from the inner network and separates from its companions following a short path through the outer plexiform layer to terminate freely. It appears for the first time on the 10th day of incubation and always in bipolar cells whose outer branching has its dendritic pattern well‐defined. We have named it the accessory prolongation.
An Ultrastructural Study of Nerve Cell Bodies in the Carotid Body and Common Carotid Artery of the Domestic Fowl
Authors: Magied E. M. Abdel 
Published: June 2007

SummaryThe right and left carotid body and carotid baroreceptor zone of six adult domestic fowls were examined. Nerve cell bodies were found in nine of the twelve carotid bodies and in ten of the twelve carotid baroreceptor zones. They showed the general ultrastructural features of autonomic neurons. Nerve cell bodies in both locations contained intranuclear inclusion bodies and cytoplasmic dense cored vesicles. A few presumptive adrenergic endings, and dendritic processes were associated with nerve cell bodies in the carotid body. Large numbers of presumptive adrenergic endings and presumptive cholinergic endings, and dendritic processes were associated with nerve cell bodies in the carotid baroreceptor zone. The possible identity and function of these nerve cell bodies are discussed.
Histochemical Characterization of the Lipid Content in the Macrophages of the Cortico‐Medullary Zone of the Rat Thymus
Authors: Milićević N. M. , Milićević ŽIvana , Mujović Spomenka 
Published: June 2007

SummaryA specific type of macrophage, located exclusively in the cortico‐medullary zone of the normal rat thymus, contains intracellular material of heterogeneous composition, which at least in part represents partially oxidized unsaturated fats, according to its positive histochemical reactions for ceroid. This globular material is Periodic Acid‐Schiff—positive and Sudan Black B—positive. It shows acid‐fastness by the long Ziehl‐Neelsen method and displays autofluorescence. The histochemical reaction for late lipofuscin is negative. The possible significance of the presented results is discussed.
A Comparison of the Efficiency of Water and Ethanol at Removing Formaldehyde from Immersion Fixed Muscle Tissues2
Authors: Rumph P. F. , Williams J. C. 
Published: June 2007

SummaryThe efficiency of water, ethanol solutions, isopropanol and ethylene glycol for extracting formaldehyde from fixed muscle tissue were compared. Similar samples of formalin preserved muscle were immersed in the test extraction fluids. After various storage periods the fluids were analyzed for formaldehyde content by sodium sulfite wet chemistry titration. The resulting data were compared by analysis of variance. Ethanol, isopropanol, ethylene glycol and water were found to be effective in extracting formaldehyde from formalin fixed tissue. The concentration of formaldehyde extraction by increasing concentrations of ethanol (20–40%) was linear. While 25 to 40% solutions of ethanol, 20% isopropanol and 25% ethylene glycol were significantly better at extracting formaldehyde, the actual percent formalin difference between water and the best extraction fluid (40% ethanol) was only 0.2% (2.43 versus 2.63%). This slight difference would hardly justify the added expense of using alcoholic or glycolic solutions solely for their extraction qualities. The problem of formaldehyde vapirs arising from embalmed tissue is associated with unbound and loosely bound formaldehyde. which can be removed by washing with various solutions. Precise methods for washing gross anatomical specimens are not discussed.
Estudio comparado de las Papilas linguales del Gato (Felis catus) y del Conejo (Oryctolagus cuniculus) mediante el Microscopio electrónico de barrido
Authors: Chamorro C. A. , Sandoval J. , Fernandez J. G. , Fernandez M. , Paz P. de 
Published: June 2007

SummaryCompared studies of the lingual papillae of the cat (Felis catus) and the rabbit (Oryctolagus cuniculus) by scanning electron microscopyThe morphologic characteristics of the principal lingual papillae of the cat and the rabbit were studied and compared through the use of scanning electron microscopy. The fungiform papillae of the rabbit demonstrates an annular pad which is absent in the cat. Both species demonstrated openings of taste pores on these papillae. The vallate papilla demonstrated pseudopapillae in both species. In the rabbit, however the annular pad is quite rudimentary. These papillae also demonstrate taste pores on their surface in both species. The foliate papillae were quite different between the species. In the cat, they were digitiform and in the rabbit they were represented by a number of laminae. Few gustatory pores were observed in the cat, but pores were numerous in the rabbit. In both species there were three forms of mechanical papillae (smooth conical, scaly conical and filiform). These papillae are described according to location and density.
Vergleichende Untersuchungen an Haaren von Labortieren
Authors: Feder Fritz‐H. 
Published: June 2007

SummaryComparative examinations on the hairs of laboratory animalsIn the white mouse the bristle hairs were on the average 8mm, in the awn hairs 7mm, and the fur hairs 6.5mm long. The values for the white rat were 19mm for the bristle hairs, 11mm for the awn hairs, and 7mm for the fur hairs; they were thus markedly longer. The hairs of the guinea‐pig and of the rabbit were two‐ and three times as long. Hair thickness—especially at the thickest point—was distinctly different for the bristle and awn hairs, while these measurements of the fur hairs did not differ very much among these species. The size of the cuticle scales did not differ much between mouse, rat and rabbit. The medulla of the bristle and awn hairs of mouse and rat and that of the awn hair of the guinea‐pig looked similar. However, the medulla of the rabbit was easily distinguished from the other species. The medulla of the fur hairs was constricted only in the mouse and rat. It is possible to identify with certainty the hairs of these four species if complete hair samples are available and if the microscopic measurements given here are taken into consideration.
Effects of Neonatal Gonadectomy on Structure of the Bursa of Fabricius in the Chicken A Light Histoquantitative Study
Authors: Milićević ŽIvana , Isaković Katarina , Vujić Drinka , Mićić Mileva , Milićević N. M. 
Published: June 2007

SummaryQuantitative stereological study of the bursa of Fabricius in Prelux chickens was performed 3 and 6 months after neonatal gonadectomy. The different structural changes were revealed in bursal follicles, epithelium and stroma of male and female chickens. In orchidectomized animals, the weight of bursa was increased compared to the nonoperated males. Stereological analysis revealed that the absolute amount of bursal follicles was increased due to the increased mass of follicular medulla. The number of areas of follicle‐associated epithelium at the bursal mucosa, which in a mature bursa corresponds to the follicle number, was decreased. The height of follicle‐associated epithelium (3 months) was decreased and the diameter of the follicle‐associated epithelium (6 months) was increased. No changes in the surface density of bursa] epithelium was registered 3 and 6 months after neonatal gonadectomy. In ovariectomized chickens the weight of bursa was decreased in comparison to the nonoperated females. Histoquantitative analysis showed that the bursal follicular mass was decreased due to the decreased absolute amount of follicular medulla (3 and 6 months) and cortex (6 months), whereas the number and diameter of follicles were not changed. The height of interfollicular and follicle‐associated epithelium was decreased, but no changes in the surface density of bursal epithelium was registered. Relative proportion of bursal stroma was increased. The studies presented further support of the concept that the functional relation between gonads and bursa of Fabricii exists during the postnatal period in the chicken.
Formaldehyde Vapor Levels in a Gross Anatomy Laboratory During Dissection of the Dog
Authors: Rumph Paul F. 
Published: June 2007

SummaryBreathing zone formaldehyde vapor levels were measured in a veterinary gross anatomy laboratory during dissection of greyhound dogs. Measurements were conducted throughout the academic quarter during which dissection took place. Measurement was accomplished using 3 M Company formaldehyde monitors (# 3720). The overall mean time weighed average was 0.197ppm to which students and faculty were exposed a total of 72 hours.
Evidence of Lamina muscularis mucosae in Rumen of Buffalo (Bubalus bubalis)
Authors: Taluja J. S. , Saigal R. P. 
Published: June 2007

SummaryHistological sections were studied from 4 sites of the rumen of 22 buffaloes, aged from 1 day to over 18 years of age. The sections were stained with Masson's trichrome stain. A definite layer of smooth muscle cells, representing the lamina muscularis mucosae separating the propria from the submucosa and extending into the ruminai papillae, was observed in buffaloes over 1.5 years of age. In animals over 10 years, the smooth muscle cells were very thin and elongated.
Sur l'Involution de la Bourse de Fabricius chez le Canard
Authors: Scala G. , Corona M. , Pelagalli G. V. , Germana G. 
Published: June 2007

SummaryOn the involution of the bursa of Fabricius of the duckThe morphological and structural aspects of the functional aspects of the involution were studied light‐ and electronmicroscopically in ducks 90 to 150 days old. The first involutionary changes were observed in the interfollicular connective tissue around day 100. Following this, cells left the periphery of the follicles; they were connected with collagen fibers and positioned themselves between the lymphocytes of the cortex that became thinner before it disappeared.On day 135 the medulla lost its lymphocyte content through wide ducts which opened directly into the lumen of the bursa. On day 150 the bursa experienced a massive overgrowth; almost all follicles had disintegrated and only small groups of cells remained which consisted principally of reticuloepithelial cells and some lymphocytes.Cysts were not observed during the involution of the bursa.
Variations of the Extensor Digitorum Brevis Muscle in the Dog
Authors: Wakuri H. , Mutoh K. , Ikeda F. 
Published: June 2007

SummaryThe variation of the extensor digitorum brevis (EDB) muscle was examined in 113 hindlimbs of dogs. Four types were discriminated in this muscle. Of the three heads of the muscle, the medial head went to the 2nd digit in types I and II, and to the 2nd and 3rd digits in types III and IV. The middle head went to the 3rd digit in types I and IV, and to the 3rd and 4th digits in types II and III. The lateral head went to the 4th digit in all the types. Type II was the most common of the four (78.76 %). Type III was found in 8.85%, type 1 in 973% and type IV in 2.66%.
The Neocortex of the Dog
Authors: Salazar I. , Pesini P. Ruiz , Troconiz P. Fdez. , Soriano J. Gonzalez , Alvarez P. Fdez. 
Published: June 2007

SummaryThis article presents abundant rigorous information concerning the whole of the neocortex of a gyrencephalate mammal (the dog), including the buried cortex. The outline of 50 μm transverse sections stained with cresyl echt violet were measured with a Vids II image analyser, measurements being taken between reference points which mostly consisted in the edges and bottoms of the sulci. These measurements were used to construct stripwise representations of the cortex of the sections, which were then joined to produce a flat map of the neocortex showing the locations of 21 structural types. The total extent of each type was calculated, together with proportion of the cortex which is hidden from view in classical cytoarchitectonic maps.
Microvasculature of the Foal Metacarpus
Authors: Marais J. , Stilson A. E. 
Published: June 2007

SummaryThe developing vascular architecture of the metacarpus of the foal was studied by a bone‐clearing technique. For this technique Microfil was used to demonstrate the periosteal, cortical and medullary vessel distribution. Superficial and deep periosteal vessels were observed. A stratified arrangement of cortical vessels, derived from medullary vessels was shown. Ascending and descending medullary arteries originated from the nutrient artery and traversed the bone medulla towards the epiphyses. Along their course through the medulla, smaller vessels were given off that ran towards the metaphyses and gave rise to numerous sinusoids. Vessels were observed crossing the growth plate in the distal metacarpus. By using the information obtained from this investigation further studies can be initiated that could determine the periosteal contribution to cortical blood flow as it relates to sequestration of bone.
Diferenciación de Cristalinos en Explantes de Embrión de Polio en Ausencia de Hipoblasto y Vesícula Optica1
Authors: Jorquera B. , Goicoechea O. , Molinari E. 
Published: June 2007

Summary In vitro studies of lens formation in chicken embryo in the absence of hypoblast and optic vesicle In vitro studies of lens formation in chick embryo have suggested the action of two factors leading the lens induction in the cephalic ectoderm in the absence of optic vesicle: preliminary instructive specific stimulus (homotypic endo‐mesoderm) and permissive unspecific stimulus (heterotypic mesenchymes).In order to detect the true capacities of tissues that exert this influence in the cultural condition, series of in vitro experiments were planned.Exclusion experiments: explants including presumptive lens ectoderm were cultured previous to a progressive exclusion of adjacent tissues to trigger lens formation (endoderm, mesoderm and neural tissue), from stage 1 to 7 of Hamburger/Hamilton.Recombinant experiments: Recombinations of caudal epiblast with cephalic hypoblast from blastoderms stages 3, 4 and 5; and recombinations of cardiac mesoderm stage 7 with trunk ectoderm stage 11, were cultured in close association.Lens and lentoids were formed in the presumptive lens ectoderm, even when endoderm, neural tissue and optic vesicle were excluded, but always in presence of subjacent mesoderm. Observation of cephalic epiblast after to be separated mechanically from the underlying tissues showed that the presumptive cardiac mesoderm remains in contact with the epiblast. Beside the cardiac area was capable of forming lens bodies in contact with the trunk ectoderm.It was concluded that the cardiac mesoderm is able to exert a instructive specific stimulus and a permissive unspecific stimulus during in vitro lens formation.
Myocardial Bridges in Animals
Authors: van Nie C. J. , Vincent J. G. 
Published: June 2007

SummaryMyocardial bridges in a number of different species is described and classified. In formulation of the classification special attention was given to the location, width, thickness of the muscular layer of the bridge and the number of commitant veins of the overbridged artery. Four types of myocardial bridges were recognized.
The Vascularization of the Bursa cloacalis (of Fabricius) in the Duck
Authors: Scala G. , Caputo G. , Paino G. , Pelagalli G. V. 
Published: June 2007

SummaryThe morphological and structural features of the vascular component of the bursa of Fabricius in the duck are described. By means of an intravasal perfusion of suitably colored neoprene Latex or Microscopaque, or a perfusion of Indian ink, it was possible to follow visually the routes of arteries, veins and the microcirculation; this last represents a major characteristic of the bursal follicle in the duck. The microcirculation has its origins in several roots arising from the follicular arterioles, which in the region of the cortex constitute an open vascular layer. From these pre‐capillary arterioles, adjacent to the limiting layer between cortex and medulla, a dense capillary network is formed. With the aid of an electron microscope the presence of a cortico‐medullary barrier of an epithelio‐reticular nature was reveled; close to it there are the terminal branches of the intrafollicular network. The barrier appears to be structurally more compact than that of the cortical capillaries of the mammalian thymus.