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Volume 75 (1998 - 199･･･
- Issue 6 Pages 263-
- Issue 5 Pages 217-
- Issue 4 Pages 163-
- Issue 2-3 Pages 61-
- Issue 1 Pages 1-
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Volume 75, Issue 1
Displaying 1-6 of 6 articles from this issue
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T TAKAMURO, I OIKAWA, G MURAKAMI, K HIRATA1998 Volume 75 Issue 1 Pages 1-8
Published: May 20, 1998
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSEighty-three pancreatic head and duodenum specimens, selected from 214 specimens, were dissected minutely to clarify the configurations of the posterior superior pancreaticoduodenal vein (PSPDv) with special reference to its topographical relationship to the common bile duct (CBD) and to whether an artery accompanied the PSPDv. The PSPDv frequently (71.1%) ran postero-inferior to the CBD without the accompaniment of an artery. Moreover, several tributaries draining the second and third portions of the duodenum sometimes (28.9%) joined together without arterial association and formed a stem, the so-called dorsal pancreatic vein. Variations of PSPDv were discussed in relation to the general vascular configuration of the small intestine.View full abstractDownload PDF (2007K) -
Ascending Projections from the Area Postrema and the Nucleus of the Solitary Tract of Suncus MurinusAnterograde Tracing Study Using Phaseolus Vulgaris LeucoagglutininHisao ITO, Makoto SEKI1998 Volume 75 Issue 1 Pages 9-31
Published: May 20, 1998
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSSuncus murinus(suncus) is a new experimental animal model for research on the mechanisms underlying emesis. In the present study, we examined the ascending projections from the area postrema (AP) and the nucleus of the solitary tract (NTS) in suncus based on anterograde transport of phaseolus vulgaris leucoagglutinin. The AP projected heavily to the dorsal vagal complex, especially in the commissural and medial subnuclei of the NTS, and the dorsal motor nucleus of the vagus. Some ascending fibers from the AP projected bilaterally to the parabrachial nucleus (Pb), but no labeling was observed rostral to this area. In contrast, the NTS had extensive projections as far as the basal forebrain. The NTS projections were observed in the AP, ventrolateral reticular formation including the nucleus ambiguus, A5 noradrenergic area, locus coeruleus, Pb, and central gray matter of the midbrain. At the level of the diencephalon, the NTS projections were seen in the dorsomedial, lateral, paraventricular, periventricular, supraoptic, retrochiasmatic and arcuate nuclei of the hypothalamus, in addition to the paraventricular nucleus of the thalamus. Terminal fields within the basal forebrain were also shown to include the medial preoptic area, the bed nucleus of the stria terminalis, the substantia innominata and the ventral pallidum.
The results indicated that the neurological relationship between the chemo- and/or barosensitive systems including the trigger of the emetic response and the general viscerosensory and/or -motor systems may exist also in the suncus.View full abstractDownload PDF (6013K) -
Mustafa BOZBUGA, Adnan ÖZTÜRK, Zafer ARI, Kayihan SAHINOGLU, ...1998 Volume 75 Issue 1 Pages 33-39
Published: May 20, 1998
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSTranstemporal approaches exposing the petroclival region require extensive drilling of the petrous bone. This is only possible with an understanding of the three dimensional anatomy of the temporal bone and the cranial base. The purpose of this study is to review the topographic anatomy of the petrous bone and peripetrous region, with emphasis on the relationships critical to the lateral approaches for posterior and lateral skull base. To understand the surgical anatomy and the cranial base approaches to this area,8 cadaveric heads and 76 dry skulls were studied. Cadaveric dissections were performed, and morphometric data from measurements of the relationships of the surface landmarks in the petroclival region were provided. The results and the observations could be useful to understand the anatomy better, and to estimate the degree and direction of a safe bony removal for the most radical transpetrosal surgery.View full abstractDownload PDF (1186K) -
Macaca fascicularisB. H. BAY, S. S. W. TAY, Y. K. NG1998 Volume 75 Issue 1 Pages 41-43
Published: May 20, 1998
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSThe manus in human is capable of performing intricate movements. To determine whether human dexterity is the result of neuromuscular co-ordination arising from a rich cortical network or due to biomechanical adaptation, the multitendoned extrinsic flexor muscles and intrinsic flexor musculature of the hand were examined in nine human cadavers and compared to those in three macaque monkeys. The flexor pollicis longus was present in all the upper limbs of the human cadavers and absent in all the upper limbs of the monkeys. An accesory origin of the flexor pollicis longus was seen in the upper limb of an Indian cadaver. The opponens pollicis which is possibly the most important intrinsic muscle of the hand was observed to be present in the manus of both human and monkey. Although the macaque monkey lacks a flexor pollicis longus, its digital dexterity has been reported to be equal to man. In this context, it would appear that neural output is the more important factor in prehensile activities.View full abstractDownload PDF (956K) -
Mustafa AKTEKIN, Mustafa F. SARGON, Pinar CAKAR, H. Hamdi CELIK, Esin ...1998 Volume 75 Issue 1 Pages 45-53
Published: May 20, 1998
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSIn this study,20 keratoconus corneal tissue were examined. In TEM examination of the cornea, the epithelium was irregular in thickness. In these epithelial cells, the number of microvilli were decreased and they showed an irregular arrangement. Vesicular degeneration and swelling of the mitochondria were observed in the cytoplasm of these cells. Interepithelial relation was normal and the desmosomes did not show any pathology. In the electron microscopic examination of the stroma, focal degeneration was observed in the collagen fibers. In SEM examination of the cornea, depressions and elevations were found on the epithelial surface. Additionally, degenerated epithelial cells were observed on focal areas. To our knowledge, the decreased number of microvilli and their irregular arrangement which we observed in TEM examination of the cornea epithelium were not reported in the literature.View full abstractDownload PDF (2104K) -
Engin DEVECI, Atilla DAGDEVIREN, Kemal GÜVEN, Serap INALÖZ1998 Volume 75 Issue 1 Pages 55-59
Published: May 20, 1998
Released on J-STAGE: September 24, 2012
JOURNAL FREE ACCESSZinc iodide osmium tetroxide (ZIO), Lymph nodules Summary: The zinc iodide- osmium tetroxide (ZIO) fixation/staining method was applied for neurocytological study and also to examine several other tissue samples including human blood and bone marrow on nerve endings in the median eminence, epidermal langerhans cells of lymphoid tissue. Although precise specificity can not be attributed to the stainig reaction. Interesting staining patterns for different cell types in lymph node were observed by one of the ZIO staining solutions. The significance of ZIO positivity is briefly discussed.View full abstractDownload PDF (1831K)
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