bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Globule Leucocyte: Morphology, Origin, Function and Fate, A Review
Authors: Akpavie S. O. , Pirie H. M. 
Published: June 2007

SummaryA review of the literature concerning the origin, function and fate of the globular leukocyte is presented. The possible relationship of this cell to other cells such as erythrocytes, mast cells and lymphocytes in general is discussed with an aim toward delineating the probable functions of the cell. Although the globular leukocyte has been described in many species and in a variety of organs, its origin, fate and function remain to be clearly elucidated.
Zelluläre Spezifität der Lektinbindung in der Niere der Wachtel (Coturnix coturnix japonica)
Authors: Wittmann P. , Sinowatz F. 
Published: June 2007

SummaryCellular Specificity of Lectin Binding in the Kidney of the Quail (Coturnix coturnix japonica)The goal of this study was to demonstrate the distribution of glycoproteins in the various segments of the Japanese Quail nephron, using lectins labeled with HRP or FITC. Each one of the six labeled lectins had a characteristic distribution pattern along the nephron. The study shows that lectins are useful markers for certain nephronal segments or for cell types in certain segments of the renal tubules. PNA marks the thin portion of the medullary loop, DBA marks the thick portion; it is thus possible to differentiate the nephronal segments in the medullary cone of the kidney. Con A binds selectively with the epithehoid, granular cells of the tunica media of the vasa efferentia. The histochemical technic using labeled lectins makes it possible to identify certain renal structures that could not, or only with difficulty, be differentiated using conventional histology. Therefore, lectins as specific markers are gaining in importance for further studies of the morphology and physiology of the kidney.
Studies on the Ovarian Development in Zebu Cattle (Bos indicus)
Authors: Mbassa Gabriel K. 
Published: June 2007

SummaryIn a study of 71 female foetuses, gonadal blastema was observed at 1.5 cm crown rump length (CRL). Oogonial cells entered the meiotic prophase at 3.5–6.0 cm CRL, which was arrested at the dictyotene stage to produce primary oocytes which formed primordial follicles. Primordial follicles were observed at 6–8 cm CRL. All germinal cells were at dictyotene by 20–24cm CRL and follicles developed to primary and secondary stages. Folliculogenesis dominated further ovarian development and reached a peak between 32 and 35 cm CRL. In seven of the 12 foetuses measuring between 41 and 72 cm CRL, many follicles were atretic and some luteinized. The luteal bodies were composed of hypertrophied theca and granulosa cells with homogeneous and eosinophilic cytoplasm.
Etude en Microscopie Optique et Electronique a Balayage de l'Evolution Structurale des Parois du Caecum et du Colon, Durant la Periode Perinatale, Chez le Lapin (Oryctolagus cuniculus L.)
Authors: Dorier A. , Piery Y. , Bacques Cl. 
Published: June 2007

SummaryStudy through photonic and electronic scanning microscopy of the structural development of the caecum and colon walls among Rabbits during the perinatal periodThe study through photonic and scanning microscopy at evolutive states, from the 24th day of gestation to the 13th day after birth, shows a quick development of the structures of the caecal and colic mucosal coming to the settling of adult forms, from the very first week of postnatal life.The distal colon part is full grown before the other parts of the alimentary canal, and is particulary rich in mucous cells. The caecum is the place where an early lymphoid defense is provided, from the 30th day of gestation.
Mecanismos de Desarrollo de la Cúpula en los Conductos Semicirculares de las Aves: I. Secreción Celular
Authors: Sequeros O. Gonzalez , Pablos J. E. Guijarro de , Rubio J. R. Moral , Gonzalez J. A. Ramirez 
Published: June 2007

SummaryMechanisms of development of the cupula of the semicircular canals of birds (Gallus gallus) I. Secretory cellsA study of the crista ampullaris of the vestibular apparatus was carried out in chicken embryos. The study group included embryos between stages 24 and 39 of Hamburger‐Hamilton. This study elucidates the relationship of the cupula with respect to the epithelium of the crista ampullaris. With electron microscopic examination, the rough endoplasmic reticulum of the crista epithelial sustentacular cells at developmental stage of 31 H‐H, demonstrated dilatations containing secretory material. Vesicles, with adhering ribosomes appear to be formed from these dilatations. At later stages of development, the vesicular material took on the characteristics of the fibrillary material composing the cupula. In some cells, secretory vesicles are seen near the apical border of these cells, where they apparently secrete vesicular contents into the endolymphatic space, contributing to the formation of the cupula.
Involución de Germenes Dentarios en la Oveja (Ovis aries)
Authors: Montenegro M. A. , Rojas M. A. , Lemus D. , González E. , Blánquez M. J. 
Published: June 2007

SummaryEarly odontogenesis in sheep (Ovis aries)In this study we examined some histologic and histochemical characteristics of the embryonic sheep dental epithelium in early odontogenesis. During the first trimester of development, a shortlived dentral lamina was observed. Apparently in the sheep, the interactions between epithelial and ectomesenchymal cells required for tooth normal morphogenesis are altered.
Morphological Analysis of the Cervicothoracic Ganglion of the 10 Week Old Pig Fetus
Authors: Pospieszny N. 
Published: June 2007

SummaryMorphological analysis of the cervicothoracic ganglion of the 10 week old pig fetus life was carried out. A description of the topographic location, shape and neural connections of the ganglion are described. Associated with these observations, the location of the fetus within the uterus and the sex of the fetus were considered.
Motor Fibers in the Canine Distal Caudal Cutaneous Sural Nerve—Dual Innervation of the Hind Limb Plantar Muscles
Authors: Cuddon P. A. , Kitchell R. L. , Johnson R. D. 
Published: June 2007

SummaryThe function of the communicating branch of the distal caudal cutaneous sural (DCCS) nerve to the tibial nerve was investigated in 7 adult dogs and was found to contain the motor component of this nerve. This function was studied by direct visualization of the contraction of the hind limb plantar muscles and by direct electrophysiologic recording of motor unit action potentials in these muscles, following stimulation of the DCCS nerve. Contraction of all of the mm. interossei, the mm. lumbricales, the m. adductor digiti quinti and the m. adductor digiti secundi was observed with the stimulation of either the tibial or the DCCS nerves, although there was a qualitative variability in the plantar muscles exhibiting the strongest contraction with stimulation of the latter nerve. This communicating branch was not found in one of the experimental dogs, suggesting some individual variability in the DCCS nerve anatomy and subsequent function. This study conclusively demonstrated that the canine DCCS nerve contains both motor and sensory nerve fibers, which is similar to this nerve in the rat, but anatomically and functionally different to that in the human and the cat.
Über die Lymphknoten des Magens von Schaf (Ovis aries) und Ziege (Capra hircus)
Authors: Vollmerhaus B. , Roos Heide 
Published: June 2007

SummaryThe lymph nodes of the stomach of the sheep (Ovis aries) and goat (Capra hircus)The lymph nodes of the stomachs taken from 31 sheep and 35 goats were described and measured. Compared with lymph nodes of cattle (Baum 1912) marked differences were found regarding the position, number and presence of the nodes, as well as in regard to the lymphatic vessels leaving them. The results are discussed in the light of the decisions that may have to be made during meat inspection.
El Desarrollo del Estomago del Vacuno: Análisis Desde el Prisma Morfológico y Morfométrico Parte II: Observaciones Morfogénicas Asociadas al Bloque Omaso‐Abomásico
Authors: Vivo J. M. , Robina A. 
Published: June 2007

SummaryOn the Development of the Bovine Stomach: A Morphological and Morphometric Analysis. Part II. Observations on the Morphogenesis of Omasum and AbomasumThis study represents a continuation of part 1 of a study of the development of the bovine stomach. Material and methods are more fully described in part i of the study. In this part 2 of the study further developmental stages and morphometric analysis is presented.
Zum Bau der Milchdrüse des Rindes während der Trockenstehperiode unter besonderer Berücksichtigung der Involutionsprozesse: 2. Elektronenmikroskopische Untersuchungen
Authors: Heinz Margit , Michel G. 
Published: June 2007

SummaryMorphology of the bovine mammary gland during the nonlacting periodAccording to the electron microscopic investigations the most evident sign of the phase of the active involution of the mammary gland in cattle is the occurrence of different great vacuoles with a diffuse content in the cytoplasma of the secretory cells till the 30th day after the beginning of the dry period. Secretory cells which go over in the rest phase show a great reduction of the cell organelles and many filaments and secundary lysosomes or residual bodies. One can observe many macrophages and lymphocytes in the partly enlarged intercellular rooms between the secretory cells and the myoepithelial cells. The myoepithelial cells are adapting to the changing forms of alveoles. The phase of the colostrogenesis is characterised by the enlargement of the cell organelles and the reappearence of vacuoles.
Spinal Root Origin of the Radial Nerve and Nerves Innervating Shoulder Muscles of the Dog
Authors: Sharp J. W. , Bailey Cleta Sue , Johnson R. D. , Kitchell R. L. 
Published: June 2007

SummaryThe ventral spinal root origin of the radial nerve, its muscle branches, and brachial plexus nerves which supply shoulder and thoracic musculature was determined in the dog. Electrophysiological signal averaging techniques measured evoked potential from specific ventral spinal roots to individual muscle nerves. The entire radial nerve received input from the sixth cervical (C6) through the second thoracic (T2) spinal roots. The most significant (p < .05) input to triceps brachii came from C8 while the deep ramus of the radial nerve received its largest input from C7. The brachiocephalicus, suprascapular, and subscapular nerves all received their most significant (p < .05) innervation from C6. Approximately 90 % of the evoked potential to the axillary nerve originated from C7. The thoracodorsal nerve received most of its innervation from ventral roots C7 and C8. The lateral thoracic nerve which innervates the cutaneous trunci muscle was supplied by ventral roots C8–T2. Examination of innervation patterns suggests that only modest variation of spinal root input to specific nerves occurred between individual dogs.
Die Weisheit des Tierkörpers
Authors: Preuss Fritz R. 
Published: June 2007

SummaryThe wisdom of the animal bodyIn 1932 Cannon described the physiological wisdom of the body. This cannot exist without morphological wisdom. Since morphology is a formative process, both kinds of wisdom depend on the same formative forces. These forces are the forces of consciousness at all levels. Their existence is proved by the fact that they can be eliminated by narcosis.The wisdom of these forces is twofold: Firstly, the wisdom of need sensation which lasts only until the need is satisfied. This is the conscious intelligence of the body which is responsible for restraint in all living beings. Secondly, the wisdom, or better, the prudence of need satisfaction which requires knowledge and appropriate tools. The organs of the body are these tools. Knowledge belongs to the intellect which knows how to handle material. This is achieved in all prehuman species subconsciously and is demonstrated in all structures built by cells and animals. Only the human mind can be unwise and imprudent; but man, being free, is also able to be wise and prudent and so prevent the extinction of the earthly creation.
The Stomach of the Kafue lechwe (Kobus leche kafuensis)
Authors: Stafford K. J. , Stafford Y. M. 
Published: June 2007

SummaryThe Kafue lechwe is endemic to the Kafue Flats area of Zambia. It is semi‐aquatic in habit, feeding upon grasses above and below the waterline. The volume of the lechwe rumen is 17 L in the male and 14 L in the female. It has strong and definite pillars. The interior of the rumen is papillated except in the roof area and on the pillars. The omasum has more than 70 laminae which are papiliated on the reticular end. The anatomy of the lechwe stomach is similar to the stomachs of other water dependent grazers such as Bohor Reedbuck, Waterbuck, Uganda Kob and Puku.
Zur Feinstruktur des Nucleus nervi hypoglossi von Schaf und Ziege*
Authors: Störmer R. , Goller H. , Schubert S. 
Published: June 2007

SummaryOn the fine structure of the nucleus nervi hypoglossi of the sheep and goatIn the small domesticated ruminants the nucleus of the hypoglossal nerve is situated in close relationship to the median line in the middle of the elongated medulla. The nucleus is divided by the obex into a rostral and a caudal portion. In the sheep, four distinct subnuclei can be recognized, whereas in the dwarf goat great variations in the arrangement of cell groups exists. In both animals large and medium sized neurones are observed. The large neurones are characterized by densely packed small organelles. The medium sized neurones vary between a pale and an electron dense type. According to the size and morphology of the vesicles three types of synaptic contacts can be differentiated. Synapses of type 2 contain clear round and flattened vesicles and are partially accompanied by subsurface cisterns.
Fine Structure of the Pecten Oculi of the Red‐Tailed Hawk (Buteo jamaicensis)
Authors: Braekevelt Charlie R. 
Published: June 2007

SummaryThe pecten oculi of the red‐tailed hawk (Buteo jamaicensis) has been examined by light and electron microscopy. In this species the pecten is very large and of the pleated type. It consists of 17–18 accordion folds which are joined apically by a heavily pigmented bridge of tissue which holds the pecten in a fan‐like shape, widest at its base. It is situated over the optic nerve head and extends into the vitreous. Within each fold are numerous capillaries, larger supply and drainage vessels and melanocytes. The capillaries are specialized and display extensive microfolds on both the luminal and abluminal borders. The endothelial cell bodies are thin with most organelles present in a paranuclear location. The capillaries are surrounded by thick fibrillar basal laminae which are probably structurally important and which often enclose pericytes. The melanocytes which are most plentiful in the bridge region and peripherally in the pecten, form an incomplete sheath around the capillaries and other blood vessels. These melanocytes are also felt to be fulfilling a structural role within the pecten. The morphology of the pecten of the red‐tailed hawk is indicative of a heavy involvement in the transport of materials to the avascular avian retina.
Morphology of the Ependymal Cells of the Bovine Area Postrema
Authors: Lindberg L. ‐A. , Sukura A. , Talanti S. 
Published: June 2007

SummaryThis communication describes the ultrastructure of the ependyma of the bovine area postrema. The polygonal cells possessed an abundant apical array of microvilli but were nonciliated with the exception of occasional cells at the periphery of the area, which had a central kinocilium. The low squamous cells contained moderate numbers of cytoplasmic organelles. The cells do not appear to be typically secretory, but may function in fluid exchange.
Sur l'Anatomie Microscopique et Fonctionnelle de la Papille iléale (Papilla ilealis) de la Valve caeco‐colique (Valva caecocolia) et de la Courbure pelvienne (Flexura pelvina) chez le Cheval (Equus caballus)
Authors: Roger T. , Cabanie P. 
Published: June 2007

SummaryOn the microscopic and functional anatomy of the ileo‐caecal and caeco‐colic junctions, and on the colic pelvic flexure in the HorseThe histologic study on six horses of the ileo‐caecal and caeco‐colic junctions confirms their sphincteral structure. It appears that the activity of the muscular fibres, identified in the ileo‐caecal and caeco‐colic plica, modulates the curvature of the junctions and thus, blocks, as sphincters, the reflux of contents from the caecum into the ileum and from the colon into the caecum. But on the other hand, the pelvic flexure does not possess any microscopic organization to stop the reflux of contents from the dorsal colon into the ventral colon.
Retinal Pigment Epithelial Fine Structure in the Red‐Tailed Hawk (Buto jamaicensis)
Authors: Braekevelt C. R. 
Published: June 2007

SummaryAs part of a comparative morphological study, the fine structure of the retinal epithelium (RPE), choriocapillaris and Bruch's membrane (complexus basalis) has been studied by electron microscopy in the red‐tailed hawk (Buteo jamaicensis). In this species the RPE consists of a single layer of low cuboidal cells which display numerous basal (scleral) infoldings and extensive apical (vitreal) processes which interdigitate with photoreceptor outer segments. These epithelial cells are joined laterally by a series of basally located tight junctions. Internally SER is the most abundant cell organelle while only small amounts of RER are present. Polysomes are however abundant as are mitochondria. The RPE cell nucleus is large and vesicular. Melanosomes are mainly located in the apical processes of the RPE cells in light‐adaptation. Myeloid bodies are large and numerous in light‐adaptation and often show ribosomes on their outer border. Bruch's membrane (complexus basalis) shows the typical pentalami‐nate structure noted in most vertebrates but with only a poorly defined central elastic layer. The endothelium of the choriocapillaris is very thin facing the RPE but is only moderately fenestrated. The choriocapillaris in this species is unusual however in that many of the fenestrae show a double‐layered diaphragm.
Vergleichende Untersuchungen an Haaren von Pudu pudu und europäischen Cerviden
Authors: Feder Fritz‐H. , Arias V. Patricio 
Published: June 2007

SummaryComparative examinations on the hair of Pudu pudu and european red deerThe awn and the fur hair of Pudu were investigated. Values of the length are between 14 and 56 mm for the awn hair, and 9 to 36 mm for the fur hair. Hair thickness – especially at the thickest point – ranges from 140 to 236 um for the awn hair and from 19 to 106 urn for the fur hair. The values of the cuticle scales are between 12 and 18 um for the length and between 41 and 66 um for the width. The shape of the scales is rectangular in the basal three quarters (R) and becomes crenated (R/Z) in the apical quarter. The medulla is continuous with large hollow vesicles. The similarity to the hair of european red deer is surprising.
Sexual dimorphism of the kidney in the NMRI mouse as shown by Dolichos biflorus agglutinin labelling
Authors: Plendl Johanna , Schoenlejber Barbara , Schmahl W. , Murray A. Beatrice , Sinowatz F. 
Published: June 2007

SummaryThe histological affinity pattern of Dolichos biflorus agglutinin (DBA) in kidneys from mice (NMRI, Balb/c, CBA) and rats (Wistar) fixed by perfusion with formalin, Bouin, or HgCl2 was investigated with a horseradish peroxidase conjugate. The animals were examined from fetal stage to adulthood.Adult female NMRI mice exhibited constant DBA labelling, with DBA binding to cells of the proximal and collecting tubules. Moreover the vascular endothelium of the renal papilla was found to be DBA‐positive in 50% of adult female animals. In contrast, there was only very little DBA binding in the kidneys of male adult NMRI mice.There was no sexual dimorphism in lectin labelling in kidneys from other strains of mice or from rats.
Die Arterien der männlichen Geschlechtsorgane Japanischer Wachteln (Coturnix coturnix japonica) und ihre Entwicklung nach dem Schlupf
Authors: Okamoto T. , Vollmerhaus B. , Roos H. , Waibl H. , König H. E. 
Published: June 2007

SummaryThe arteries supplying the male reproductive organs of Japanese Quails (Coturnix coturnix japonica) and their post‐hatching developmentA total of 83 male Japanese quails of the following age groups were used for this study: 11, 18, 25,32, 35, 37,39,41,43 days, and 7,9,17 weeks after hatching. Neopren‐Latex®, Tensol‐Cemenr®, and the china ink were injected via the aortic arch.In most of male Japanese quails, the testes are supplied by the A. testicularis originated from the Aorta descendens through a common trunk with the A. renalis cranialis. But in only 3 quails had this artery originated directly from the Aorta descendens on either side. In 9 quails had the A. testicularis accessoria originating independently from the Aorta descendens and running cranially or caudally in short distance to the normal A. testicularis.The arteries for the Ductus deferens were divided into 3 categories. The Rami ureterodeferentia‐les craniales were spread out from A. testicularis or Rami epididymales. The Rami ureterodeferentiales medii came from the A. renalis media and the A. renalis caudalis. The Rami ureterodeferentiales caudales originated from the A. caudae lateralis and A. pudenda.The Receptaculum ductus deferentis, the Corpus vasculare paracloacalis and the Phallus nonprotrudens in the Cloaca were supplied from the thick Ramus cloacalis of the A. pudenda.The Ramus bursalis of this artery supplied the Glandula proctodaealis and the Bursa cloacalis, and was also thick.The arteries to the genital organs were observed in the 11 day old male quail. The A. pudenda began developing at about 30 days after hatching when the quai's body maturated. While the A. testicularis began developing at about 40 days after hatching when the male Japanese quail was full of the spermatogenic activity.
Immunocytochemical Study of the Diffuse Neuroendocrine System Cells in Equine Lungs
Authors: Rodríguez A. , Peña L. , Flores J. M. , González M. , Castaño M. 
Published: June 2007

SummaryThis study was undertaken to investigate the presence of neuroendocrine cells (N.E.C.) by immunocytochemical means in equine lungs during three distinct evolutionary periods: fetal, neonatal and adult. The authors identified bombesin, somatostatin and calcitonin secretory cells. In the fetal lungs the N.E.C. were located in the interstitial tissue and exhibited greater immunoreactivity to bombesin than to the other two neuropeptides studied. A large number of calcitonin‐producing cells and a smaller number of bombesin‐positive cells were seen in the bronchial and bronchiolar epithelium of newborn Equidae. In the adult equine lungs far fewer N.E.C. were observed than in the earlier stages. Somatostatin‐producing cells were not seen in neonatal or adult lung tissue.
Arrangement of the Branches of the Aorta Abdominalis in the Wood Mouse (Apodemus sylvaticus)
Authors: Jose Maria , Fuster Lopez , Ventura Jacint 
Published: June 2007

SummaryData on the distribution and variation of the abdominal arteries in the wood mouse, Apodemus sylvaticus, are given. Seventy specimens (44 males and 26 females) caught in the field were analyzed by injection of green latex solution and dissection.The general branching pattern of the aorta abdominalis is similar to those described in other rodents. There are certain differences, however, especially in the branching of the coeliac trunk, the origin of the genital arteries and the arrangement of the caudal mesenteric artery. Significant variability was detected in the distribution of the iliolumbar arteries about the testicular and ovaric arteries. Based on the observations and measurements carried out, some branching patterns of the aorta abdominalis are presented.