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Classification of human maxillar sinuses according to their geometric features. 根据上颌窦的几何特征进行分类。
Anatomischer Anzeiger Pub Date : 1991-01-01
S Anagnostopoulou, D Venieratos, N Spyropoulos
{"title":"Classification of human maxillar sinuses according to their geometric features.","authors":"S Anagnostopoulou,&nbsp;D Venieratos,&nbsp;N Spyropoulos","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>119 casts of maxillary sinuses have been taken out of 60 dry skulls. In these specimens, the volume V, the area of the basal (i.e. corresponding to the nasal cavity) surface S and the height h have been measured. The sinuses are subsequently arranged into 4 classes, according to their similarity to solids of revolution such as: semi-ellipsoid (class a: 15% of specimens); paraboloid (class b: 30%); hyperboloid (class c: 47%) and cone (class d: 8%). As criterion for this classification, the value of the coefficient K, equal to v/Sh has served. Beyond the eventual anatomical and anthropological interest of this classification, a clinical interest may exist in combination with Computed Tomography or eventually with Echography. The asymmetry that exists between maxillary sinuses (56% of our sample comprises pairs of sinuses arranged in different classes) suggests the eventual necessity of separate radiography of each individual sinus.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12951224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[An unusual canal in the apical part of a petrous bone--an emissary canal for the superior petrosus sinus?]. [在岩骨顶端的一个不寻常的管道——上岩窦的一个代理管道?]。
Anatomischer Anzeiger Pub Date : 1991-01-01
F K Fuss, S Aharinejad
{"title":"[An unusual canal in the apical part of a petrous bone--an emissary canal for the superior petrosus sinus?].","authors":"F K Fuss,&nbsp;S Aharinejad","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A bone canal was found in the apical part of a Pars petrosa, connecting the Sinus petrosus superior and the \"Foramen petrobasilare\", which is a Foramen emissarium of the Sinus petrosus inferior. This canal was interpreted as a Canalis emissarius of the Sinus petrosus superior.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12951226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photosensory elements in the pineal gland of the Japanese quail, with special reference to the paraboloid. 日本鹌鹑松果体的光感元件，特别参考抛物面。
Anatomischer Anzeiger Pub Date : 1991-01-01
K Ohshima, S Matsuo
{"title":"Photosensory elements in the pineal gland of the Japanese quail, with special reference to the paraboloid.","authors":"K Ohshima,&nbsp;S Matsuo","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In 1-day-old Japanese quails, Coturnix coturnix japonica, photosensory elements of the pineal gland were examined by means of histochemical demonstration of glycogen and transmission electron microscopy. The parenchymal cells of the quail show immature structure, especially, small apical protrusion with a few mitochondria in the pinealocyte and rare appearance of the dense body in the supporting cell. The paraboloid is found in cytoplasmic processes projecting into the follicular lumen and in perikarya of the follicular cells. It is composed of a well-developed network of tubular smooth-surfaced endoplasmic reticulum and abundant glycogen granules, but there is not a higher concentration of glycogen in its central region. The paraboloid-containing cell is considered as a type of the pinealocyte, because of occasional appearance of the synaptic ribbon in its perikaryon. In addition to lamellar whorls, regular stacks of lamellar disks are observed in the pineal lumen, being adjoining to the paraboloid-containing cytoplasmic process. The present results may provide further evidence for the direct photoreception by the avian pineal.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13044732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Qualitative and quantitative glial changes in the hippocampus of aged rats. 老龄大鼠海马神经胶质质的定量变化。
Anatomischer Anzeiger Pub Date : 1991-01-01
I Lolova
{"title":"Qualitative and quantitative glial changes in the hippocampus of aged rats.","authors":"I Lolova","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Ultrastructure of the glial cells in the CA 1 hippocampal field and some quantitative parameters characterizing the astrocytes in stratum lacunosum-moleculare (str. L-M) of the CA 1 hippocampal field of young-mature (3-month old) and aged (24-month old) rats were examined. The qualitative observations showed structural changes in astrocytes, oligodendrocytes and microglial cells in all layers of the CA1 hippocampal field in aged rats. The quantitative analysis demonstrated a considerable increase in total and individual volume fractions of astrocyte processes, in number of astrocyte profiles per square area of neuropil and in percentage area of neuropil occupied by astrocyte process profiles. These changes as well as the increased number of astrocyte nuclei suggest the appearance of hypertrophy and hyperplasie of astrocytes in str. L-M of the CA 1 hippocampal field of rats in aging.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13044734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphology of the endocrine pancreas in cyclosporine-treated glucose-intolerant Wistar rats. 环孢素处理葡萄糖不耐受Wistar大鼠胰腺内分泌形态。
Anatomischer Anzeiger Pub Date : 1991-01-01
S Lucke, E Radloff, R Laube, H J Hahn
{"title":"Morphology of the endocrine pancreas in cyclosporine-treated glucose-intolerant Wistar rats.","authors":"S Lucke,&nbsp;E Radloff,&nbsp;R Laube,&nbsp;H J Hahn","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The toxic effect of Cyclosporin A (CS-A) (1.25-50.0 mg/kg body weight) on the endocrine pancreas of Wistar rats was morphologically investigated. The treatment of animals with CS-A doses above 5 mg/kg for 2 weeks resulted in a disturbed glucose tolerance, a reduced B-cell volume density and degranulation, vacuolization and decreased mitotic activity of the B-cells. After withdrawal of the drug the impaired parameters were stepwise normalized, starting with regranulation of pancreatic B-cells, followed by a stimulation of mitotic activity, and increase of B-cell volume density. When continuing the CS-A treatment with doses lower than 5.0 mg/kg for longer periods we observed a decreased body weight gain and reduced pancreatic insulin content.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13058222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bilateral retinal responses after lens disruption in rabbits with and without skin graft. 兔晶状体破裂后的双侧视网膜反应，有和没有皮肤移植。
Anatomischer Anzeiger Pub Date : 1991-01-01
Q D Yang, D T Yew, W W Li, C Y Au
{"title":"Bilateral retinal responses after lens disruption in rabbits with and without skin graft.","authors":"Q D Yang,&nbsp;D T Yew,&nbsp;W W Li,&nbsp;C Y Au","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the rabbit, lens disruption produced very little histological changes in the retina. However, lens disruption after skin graft produced an alarming picture with infiltration of inflammatory cells and degeneration of retinal layers.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13111182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stability of neuronal glial number in the aging mouse supraoptic nucleus. 老龄小鼠视上核神经元胶质数量的稳定性。
Anatomischer Anzeiger Pub Date : 1991-01-01
R R Sturrock
{"title":"Stability of neuronal glial number in the aging mouse supraoptic nucleus.","authors":"R R Sturrock","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The numbers of neurons and glia in the supraoptic nucleus were estimated in mice aged 6, 25, 28 and 31 months. There were no significant variations in the number of neurons or in the number of glia with age. Measurement of neuronal and glial nuclear diameters at 6, 12, 15, 22, 25, 28, and 31 months showed a steady decrease in neuronal nuclear diameter from 9.2 +/- 0.3 microns at 6 months to 8.3 +/- 0.1 microns at 22 months followed by an increase in diameter between 25 and 31 months to 9.8 +/- 0.1 microns. There was no significant variation in glial nuclear diameter (mean 6 microns) with age. Neuronal Nissl substance decreased with age but lipofuscin accumulation was not a prominent feature of ageing supraoptic neurons.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13204765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Augmentation of bone repair by pulsed elf magnetic fields in rats. 脉冲elf磁场对大鼠骨修复的增强作用。
Anatomischer Anzeiger Pub Date : 1991-01-01
V Ottani, V De Pasquale, P Govoni, P P Castellani, M Ripani, E Gaudio, M Morocutti
{"title":"Augmentation of bone repair by pulsed elf magnetic fields in rats.","authors":"V Ottani,&nbsp;V De Pasquale,&nbsp;P Govoni,&nbsp;P P Castellani,&nbsp;M Ripani,&nbsp;E Gaudio,&nbsp;M Morocutti","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Tibial osteotomies in rats were exposed for 2, 3, 5 and 8 weeks to a pulsed extremely low frequency magnetic field. The shape of the pulse was a double halfwave (50 Hz, 70 G). The rate of bone healing was evaluated by light and electron microscopy. An increase of bone healing was found in rats treated with magnetic fields persisting throughout the tested time. The accelerated healing process produced a sequence of morphological appearances identical to those of a normal fracture callus being the enhancement of osteogenesis produced by an acceleration of preliminary ossification.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13204768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunohistochemical localization of serotonin in the pineal gland of the chicken during post-hatching development in relation to light-dark cycle. 鸡孵化后发育过程中松果体血清素的免疫组织化学定位与光暗周期的关系。
Anatomischer Anzeiger Pub Date : 1991-01-01
K Ohshima, S Matsuo
{"title":"Immunohistochemical localization of serotonin in the pineal gland of the chicken during post-hatching development in relation to light-dark cycle.","authors":"K Ohshima,&nbsp;S Matsuo","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the present immunohistochemical study using an antiserum against serotonin, the localization of serotonin was demonstrated in the pineal gland of the chickens from 1 day to 3 years of age. Serotonin-like immunoreactivity was located in the supranuclear region of the follicular cells and in the perikaryon of the parafollicular cells in the pineal gland, exhibiting distinct changes during post-hatching development. The reactivity reached its peak in 1-year-old chicken. Moreover, diurnal changes in immunoreactivity also existed after 1 day of age, being high in the light period and low in the dark period. Occasionally in 1-3-year-old chickens, a part of granular-shaped reactive products observed in the light period appear to be diffused in the cytoplasm in the dark period. In addition, a number of immunoreactive fibers were shown in the pineal parenchyma, exhibiting a slight increase in number and in reactivity at 40 days of age.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12934775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The emergence of the chorda tympani from the tympanic cavity and its course until its entry into the lingual nerve]. [鼓室索从鼓室腔中出现并延伸至舌神经]。
Anatomischer Anzeiger Pub Date : 1991-01-01
C Bartsch, A Wagner, B Miehe, R Kowalewski
{"title":"[The emergence of the chorda tympani from the tympanic cavity and its course until its entry into the lingual nerve].","authors":"C Bartsch,&nbsp;A Wagner,&nbsp;B Miehe,&nbsp;R Kowalewski","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Because there are a lot of contradictory opinions in the literature we investigated the intra- and extraosseous pathway of the Chorda tympani by dissecting the heads of 6 cadavers. The Chorda nerve leaves the temporal bone in the Fissura sphenopetrosa behind the Spina ossis sphenoidalis. In an angle of 24 degrees-28 degrees the Chorda nerve connects up with the lingual nerve. The extraosseous distance is about 1.3 to 3 time longer then the intraosseous one. The individual variations of the intraosseous distance are greater than those of the extraosseous one. This is behalf the individual variations in the structure of the temporal bone.</p>","PeriodicalId":72195,"journal":{"name":"Anatomischer Anzeiger","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12966055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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