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Functional and developmental morphology最新文献

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Development of medical genetics in the Czech Republic from 1986 to 1990. 1986年至1990年捷克共和国医学遗传学的发展。
Functional and developmental morphology Pub Date : 1992-01-01
J Kapras
{"title":"Development of medical genetics in the Czech Republic from 1986 to 1990.","authors":"J Kapras","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 2","pages":"125-6"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12620331","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
Ethical aspects of genetic counselling. 遗传咨询的伦理问题。
Functional and developmental morphology Pub Date : 1992-01-01
J Zidovská
{"title":"Ethical aspects of genetic counselling.","authors":"J Zidovská","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 2","pages":"127-8"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12620332","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 rearrangement of the cranial part of embryonal body in chick studied by linear marking. II. Relations of the neck, thorax and shoulder. 用线性标记法研究了鸡胚体颅骨部分的重排。2颈、胸、肩的关系。
Functional and developmental morphology Pub Date : 1992-01-01
V Seichert, C Knospe
{"title":"The rearrangement of the cranial part of embryonal body in chick studied by linear marking. II. Relations of the neck, thorax and shoulder.","authors":"V Seichert,&nbsp;C Knospe","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The linear marking method was employed for studying morphogenetic movements of tissues involved in formation of the cranial part of the chick embryonic body. A total of 120 chick embryos marked on days 3-5 were used in this study with the following results: The cranial shift of axial structures and somites with respect to the other components of the cranial part of the embryonic body, described in our earlier papers, has been proven. This shift is considered crucial from the point of understanding and proper interpretation of the following formative processes: The prospective mesenchyme of the wall of the thorax shifts continuously in the cranial direction. The rate of the shift of the mesenchyme in the dorsal part of the developing body wall appears considerably lower than that of the somites. The cranial shift of the mesenchyme of the ventral part of the body wall is directed ventromedially and proceeds more rapidly than in the dorsal part of the body wall. The ventromedial deviation of the cranial shift is gradually increased in the craniocaudal sequence. In this way, the mesenchyme of the lateral body wall replaces step by step the membrana reunions to cover the heart, rapidly growing lungs and the liver. The presumptive shoulder shifts cranially at the rate similar to that of the somites. In this way, the shoulder slides over the body wall mesenchyme formerly located in the more cranial position. The shoulder undergoes rotation by the mechanism which is discussed.</p>","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 3","pages":"201-7"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12659202","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
Developmental, histological and ultrastructural studies on the harderian gland of the Egyptian toad, Bufo regularis Reuss. 埃及蟾蜍硬腺的发育、组织学和超微结构研究。
Functional and developmental morphology Pub Date : 1992-01-01
I Sabry, T A Rizk
{"title":"Developmental, histological and ultrastructural studies on the harderian gland of the Egyptian toad, Bufo regularis Reuss.","authors":"I Sabry,&nbsp;T A Rizk","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The present study shows that the Harderian gland of the toad Bufo regularis starts to appear during development at stage 57 concomitant with the development of the nictitating membrane. In the adult toad, the gland was found to be formed of one lobe and occupying the antero-ventral aspect of the orbital cavity. No anatomical differences were noted between the male and female glands. The histological and ultrastructural studies showed that the Harderian gland is a compound tubular gland composed of rounded tubules lined by a single layer of epithelial cells and having a meshwork of myoepithelial cells surrounding the gland tubules. Differences were observed in the epithelial cells of female and male toads Bufo regularis. While females have a dilated rough endoplasmic reticulum and several secretory granules throughout the cytoplasm, males have a compact rough endoplasmic reticulum and numerous secretory granules and vacuoles.</p>","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 3","pages":"173-7"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12660725","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 electron microscopic study of the development of the thymus anlage of athymic (nu/nu) mice. 胸腺(nu/nu)小鼠胸腺标本发育的电镜研究。
Functional and developmental morphology Pub Date : 1992-01-01
A Seichertová, M Holub
{"title":"An electron microscopic study of the development of the thymus anlage of athymic (nu/nu) mice.","authors":"A Seichertová,&nbsp;M Holub","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Using electron microscopy, we examined the anlage of dysgenetic embryo thymuses of nu/nu mice aged 14.5-15 days, 16 days and 18 days p.c., with thymus anlage of nu/+ mice serving as controls. On comparing both types, we noted differences at all intervals which increased in a time-related manner. Lymphoid cells were found only very occasionally in dysgenetic thymus anlage up to day 16 p.c. while there were no capillaries at all in any of the stages investigated. In epithelial reticular cells, undemarcated (membrane non limited) spaces of varying size and containing PAS+ material were found in the cytoplasm (glycogen-like particles seen in electron microscopy). Based on our findings, and on general assumptions, we believe that the primary process occurring in the dysgenetic thymus is abnormal epithelial stroma differentiation resulting not only in a lack of lymphoid cells but, also, in a limited or probably absent vascular bed.</p>","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 4","pages":"225-9"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12478243","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
Nigrostriatal projections in the rat as demonstrated by retrograde transport of horseradish peroxidase. II. Projection to the caudal striatum. 辣根过氧化物酶逆行转运对大鼠黑质纹状体的影响。2投射到尾纹状体。
Functional and developmental morphology Pub Date : 1992-01-01
R Druga
{"title":"Nigrostriatal projections in the rat as demonstrated by retrograde transport of horseradish peroxidase. II. Projection to the caudal striatum.","authors":"R Druga","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The distribution of nigral neurons projecting to the caudal and basal parts of the striatum was studied in 9 rats by means of the horseradish peroxidase labelling technique. Labelled neurons localized in the substantia nigra pars compacta were demonstrated throughout the antero-posterior extent of the nucleus. Most of them were found in the lateral half of the SNc. Labelled neurons localized in the substantia nigra part reticulata predominated in the caudolateral part of the SNr. Characteristic features included major perikaryal polymorphism and size range of the nigrostriatal neurons.</p>","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 4","pages":"235-9"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12478245","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 state of the microcirculatory bed after total ischaemia of the brain. An experimental ultrastructural study. 脑全缺血后微循环床的状态。实验性超微结构研究。
Functional and developmental morphology Pub Date : 1992-01-01
M Pomfy, J Húska
{"title":"The state of the microcirculatory bed after total ischaemia of the brain. An experimental ultrastructural study.","authors":"M Pomfy,&nbsp;J Húska","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The study was focused on the changes in morphological structure of cerebral microcirculation after two stages of 7 min dog's total brain ischaemia followed by 24 recirculation. In the first experimental group (brain blood pressure 2.5-3.0 kPa), there was observed ultrastructural picture of damaged microvessels, including dilated and irregularly shaped lumens, thick finger-like endothelial processes, dark osmiophilic cytoplasm of the endothelial cells with light spaces, clusters of ribosomal structures, impairment of endoplasmic reticulum and mitochondria, dilated tight junctions, irregular and thickened basement membranes. The alteration of astrocytes consisted of accumulation of beta-glycogen particles and lipofuscin and altered lysosomal structures. On the other hand, in the second experimental group (brain blood pressure 1.0-1.5 kPa) the signs of impaired microcirculation were found. Type A pattern of vessel damage was delineated by dilated capillary lumen, despite the presence of marked perivascular oedema. Type B represented the no-reflow phenomenon. Type C was defined by a conspicuous lobular nucleus of endothelial cells obstructing the lumen of the capillary. Type D was characterized by ischemically damaged erythrocytes, despite the adequate perfusion fixation. Finally, type E included necrotic endothelial cells and endothelial blebs.</p>","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 4","pages":"253-8"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12478249","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
Prenatal diagnosis of congenital nephrotic syndrome of Finnish type. 芬兰型先天性肾病综合征的产前诊断。
Functional and developmental morphology Pub Date : 1992-01-01
K Srsnová, M Bencat, S Srsen, J Miháliková, P Slávik, V Svihrová
{"title":"Prenatal diagnosis of congenital nephrotic syndrome of Finnish type.","authors":"K Srsnová,&nbsp;M Bencat,&nbsp;S Srsen,&nbsp;J Miháliková,&nbsp;P Slávik,&nbsp;V Svihrová","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 2","pages":"133-4"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12620335","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
Ultrastructure of rabbit tracheal epithelium after the administration of Hexabrix--a hexaiodated contrast agent for tracheobronchography. 气管支气管造影剂Hexabrix给药后兔气管上皮的超微结构。
Functional and developmental morphology Pub Date : 1992-01-01
V Konrádová, S Tůma, J Kanta, J Sulová
{"title":"Ultrastructure of rabbit tracheal epithelium after the administration of Hexabrix--a hexaiodated contrast agent for tracheobronchography.","authors":"V Konrádová,&nbsp;S Tůma,&nbsp;J Kanta,&nbsp;J Sulová","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The ultrastructure of the tracheal epithelium after the application of 1 ml of Hexabrix (a hexaiodated contrast agent for tracheobronchography) into the airways was studied. Severely altered pseudostratified columnar epithelium was found in the trachea. Eighty-one +/- 5% of the goblet cells had been stimulated to discharged mucus. Forty-three +/- 3% of them were completely exhausted and had degenerated. The ciliated cells displayed marked signs of pathological alteration up to vacuolar degeneration. The ciliary border above the epithelium was severely damaged. The mean number of cilia per micron 2 fell to 3.3 +/- 0.5, but the proportion of intact cilia did not drop below 95%. As morphological signs of impaired self-cleaning ability of the airway epithelium, a large amount of inspissated mucus and numerous bacteria were found in the area of the impaired ciliary border. Coarse grained contrast substance of supreme electron density was intermingled with the condensed mucus. The most pronounced damage to the cells was observed at the sites of direct contact of the contrast agent with the cell membranes.</p>","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 1","pages":"31-5"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12684447","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
A new explanation of the cancellous bone architecture. 松质骨结构的新解释。
Functional and developmental morphology Pub Date : 1992-01-01
J Hert
{"title":"A new explanation of the cancellous bone architecture.","authors":"J Hert","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Various objections can be made to all the theories so far put forward in explanation of the architecture of cancellous bone. The author suggests another explanation, which takes into account the following points: 1) the structure of the secondary spongiosa is based on the pre-existent primary spongiosa, 2) the secondary spongiosa develops under alternating pressures from different directions, 3) oblique forces from marginal directions corresponding to extreme positions on the joint place the greatest strain on the spongiosa trabeculae, as demonstrated by means of a geometrical model. Oblique forces are therefore of decisive morphogenetic importance. 4) The spongiosa trabeculae are oriented in the direction of the oblique marginal forces, in accordance with the experimentally demonstrated mechanism of the strain-dependent reaction of the bone. Spatially, the secondary spongiosa assumes a fan-shaped structure. Two-dimensionally, the two intersecting systems are compression systems, each of which depends on another marginal loading direction. This pattern offers an optimum solution to the problem of the transmission of alternating forces to the diaphysis from various directions, using a minimum of material.</p>","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"2 1","pages":"15-21"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12684541","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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