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  • 1990-1994  (5)
  • Cell & Developmental Biology  (2)
  • Macroscopic anatomy  (2)
  • Angiography  (1)
  • Column liquid chromatography
  • Rats
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  • 1
    Electronic Resource
    Electronic Resource
    Middle mesenteric artery: an anomalous origin of a middle colic artery (1993)
    Springer
    Surgical and radiologic anatomy 15 (1993), S. 361-363 
    Details
    ISSN: 1279-8517
    Keywords: Angiography ; Anomaly ; Mesenteric artery ; Middle mesenteric artery ; Middle colic artery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Un cas d'anomalie de l'artère mésentérique est rapporté. L'artère a été cathétérisée incidentallement lors de l'angiographie d'une patient présentant une tumeur rénale gauche. Elle naissait de l'aorte abdominale entre l'artère mésentérique supérieure et l'artère mésentérique inférieure. Elle montait directement à partir de son origine pour se distribuer au colon transverse et remplacer la branche colique moyenne normalement issue de l'artère mésentérique supérieure. Cette anomalie est sûrement le résultat d'une concentration anormale des artères viscérales impaires et médianes existant pendant la période embryonnaire. Ce type d'anomalie est très rare et justifierait le nom d'artère mésentérique moyenne.
    Notes: Summary A case of anomalous mesenteric artery is reported. The artery was incidentally cannulated during angiography of a patient with a left renal tumor. It arose from the abdominal aorta between the superior and inferior mesenteric arteries. The artery then ascended directly upwards from its origin and supplied the transverse colon replacing the middle colic branch of the superior mesenteric artery. The anomaly must be a result of a anomalous concentration of unpaired visceral arteries in the developing embryo. This type of anomaly is very rare and it would be appropriate to name the artery the middle mesenteric artery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01627894
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  • 2
    Electronic Resource
    Electronic Resource
    The vascular and neuronal composition of the lateral ligament of the rectum and the rectosacral fascia (1991)
    Springer
    Surgical and radiologic anatomy 13 (1991), S. 17-22 
    Details
    ISSN: 1279-8517
    Keywords: Lateral and posterior ligaments of the rectum ; Middle rectal vessels ; Pelvic splanchnic nerves ; Rectosacral fascia ; Macroscopic anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La dissection de 83 hémibassins provenant de 45 cadavres a été réalisée pour préciser la structure du ligament latéral du rectum et du fascia recto sacré. L'artère rectale moyenne (ARM) a été observée seulement sur 18 specimens (22,2 %). Le ligament latéral du rectum a été divisé en portion latérale et médiale, en fonction des rapports topographiques avec le plexus pelvien. La partie latérale présente une portion antérosupérieure contenant l'ARM et une portion postéro-inférieure contenant les nerfs splanchniques pelviens (NSP). Ces deux composants (ARM et NSP) contribuent à la formation de la partie médiale bien que les vaisseaux rectaux moyens ne soient pas toujours présents. La partie médiale répond aux branches rectales du plexus pelvien et à leurs tissus conjonctifs environnants. Le fascia sacro-rectal est formé de tissu conjonctif dense, tendu de la paroi postérieure du rectum aux 3e et 4e vertèbres sacrées. Les principaux composants de ce fascia sont les branches latérales et médiales des vaisseaux sacrés et les nerfs splanchniques sacrés arrivant directement des ganglions sympathiques sacrés.
    Notes: Summary Detailed dissections were performed on 83 pelvic halves from 45 cadavers in order to obtain more accurate data on the composition of the lateral ligament of the rectum and the rectosacral fascia. The middle rectal artery was observed in only 18 out of 81 spcimens (22.2%). The lateral ligament of the rectum was divided into lateral and medial portions, according to the positional relationship to the pelvic plexus. The lateral part consisted of a superoanterior and an inferoposterior subdivision. The main component of the former was the middle rectal artery, while the pelvic splanchnic nerves were contained in the latter. Both components can be considered to contribute to the formation of the medial part, although the middle rectal vessels were not always present. The medial part consisted of the rectal branches from the pelvic plexus and their connective tissue. The rectosacral fascia was formed by dense connective tissue between the posterior wall of the rectum and the third and fourth sacral vertebrae. The main components of the fascia were branches of the lateral and median sacral vessels and the sacral splanchnic nerves which arose directly from the sacral sympathetic ganglia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01623135
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  • 3
    Electronic Resource
    Electronic Resource
    An anatomical study of the lymphatic drainage of the gallbladder (1991)
    Springer
    Surgical and radiologic anatomy 13 (1991), S. 89-104 
    Details
    ISSN: 1279-8517
    Keywords: Gallbladder ; Lymphatic system ; Carcinoma ; Macroscopic anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé A partir de la dissection fine des lymphatiques de la vésicule effectuée sur 4 sujets adultes, trois voies de drainages ont pu être schématisées. 1) La voie cholécysto-rétro pancréatique qui peut être considérée comme la principale, comporte deux trajets, l'un descendant en spirale de la face antérieure de la voie biliaire principale vers son bord postéro-droit, et l'autre descendant directement à la face postérieure du conduit biliaire. Dans leur segment rétroportal, ces voies convergent vers un important nœud lymphatique qui apparaît comme le principal nœud terminal de cette voie. Nous l'avons dénommé le nœud principal rétroportal. 2) La voie cholécysto-cœliaque est utilisée par quelques lymphatiques de la vésicule biliaire qui se dirigent vers la gauche à travers le ligament hépato-duodénal pour rejoindre les nœuds cœliaques. 3) La voie cholécysto-mésentérique est empruntée par des lymphatiques qui descendent vers la gauche en avant de la veine porte et rejoignant les nœuds situés à l'origine de l'artère mésentérique supérieure. Ces trois voies convergent vers les nœuds lymphatiques abdomino-aortiques situés à proximité de la veine rénale gauche; les nœuds situés dans l'espace inter-aortico-cave seront particulièrement importants.
    Notes: Summary Based upon the detailed dissections of the lymphatic system of four adult cadavers, the lymphatic drainage of the gallbladder was divided into three pathways. 1) The cholecysto-retropancreatic pathway, which can be regarded as the main pathway, had two routes, one running spirally and posteriorly from the anterior surface of the common bile duct to the right, and the other running almost straight down from the posterior surface of the common bile duct. At the retroportal segment, these routes converged at a large lymph node, which appeared critical as the main terminal lymph node of this pathway. We designated this node the principal retroportal node. 2) The cholecysto-celiac pathway was the route by which some of the lymphatics from the gallbladder ran to the left through the hepatoduodenal ligament to reach the celiac nodes. 3) The cholecysto-mesenteric pathway was the route by which some of the lymphatics ran to the left in front of the portal vein and connected with the nodes at the superior mesenteric root. These three pathways converged with the abdomino-aortic lymph nodes near the left renal vein; in particular, the nodes in the interaortico-caval space were considered important.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01623880
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  • 4
    Electronic Resource
    Electronic Resource
    Morphology of the teeth of adult caudata and apoda: Fine structure and chemistry of enamel (1992)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 214 (1992), S. 341-350 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Representative functional teeth from Cryptobranchus alleghaniensis (Cryptobranchidae), Amphiuma means (Amphiumidae), Dicamptodon ensatus (Dicamptodontidae), Necturus maculosus (Proteidae), and Dermophis sp. (Costa Rica) (Caeciliidae) were prepared for transmission electron microscope and electron microprobe analysis of the trace elements of the enamel layer. The enamel layer of these species is very thin and the arrangement of enamel crystals variable. In particular, the outer part of the enamel layer in which hydroxyapatite elements (Ca, P) and trace elements (e.g., F, Fe, Mg) are concentrated, is most heavily mineralized. The concentrations and alignment of crystals in the outer and inner parts of the enamel layer differ among these species.The presence of collagen fibers in the inner part of the enamel layer of Cryptobranchus and Dermophis indicates that it is enameloid rather than true enamel. The presence of trace elements may be related to the pattern of mineralization of enamel or enameloid, as suggested for tetra-odontiform fishes by Suga et al. (J. Dent. Res. 68:1115-1123, 1989). © 1992 Wiley-Liss, Inc.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1052140309
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  • 5
    Electronic Resource
    Electronic Resource
    Histochemical study of jaw muscle fibers in the American alligator (Alligator mississippiensis) (1992)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 211 (1992), S. 187-199 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Seven jaw muscles of the American alligator have been analyzed for histochemical characteristics of their fiber types: Musculus depressor mandibulae (MDM), M. pseudotemporalis (MP), M. adductor mandibulae posterior (MAMP), M. adductor mandibulae externus (MAME, profound and superficial portions), M. intramandibularis (MI), M. pterygoideus anterior (MPta), and M. pterygoideus posterior (MPtp). Classification of muscle fibers in previous studies has been based on (1) the staining properties of myosin ATPase after alkaline and acid preincubations and (2) the staining reactions for SDH, α-GPDH, PAS, and myosin ATPase after alkaline preincubations. In this study fiber types in one group of muscles (MP, MAMP, profound portion of MAME and MI) are classified (1) as type I, IIa, or IIb fibers, according to the system of Brooke and Kaiser (Arch. Neurol. 23:369-379, '70) or (2) as fast twitch glycolytic (FG), fast oxidative glycolytic (FOG), slow oxidative (SO), and tonic (few in number) fibers, according to the system of Putnam et al. (J. Exp. Zool. 214:303-309, '80). A second group of muscles (MDM, MAME superficial portion, MPta, and MPtp) reacted differently in similar histochemical tests and are classified, respectively, as (1) types 1, 2, 3 or (2) types A, B, C. We have distinguished the fiber types as red, intermediate, white, and tonic in analyses on muscle sections. The highest percentage of red and intermediate fibers is found in the MI. All three fiber types are approximately equal in superficial and medial portions of the MDM and the MPtp. Three muscles (MP, MAMP, and MAME) have the highest white fiber composition. These results indicate a correlation between the histochemical profiles of individual muscles and their functions during masticatory movements.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1052110207
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