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Acta morphologica Neerlando-Scandinavica最新文献

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Growth in the myopathic Syrian hamster (Cricetus auratus). 病态叙利亚仓鼠(Cricetus auratus)的生长。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
A W Park, B J Nowosielski-Slepowron
{"title":"Growth in the myopathic Syrian hamster (Cricetus auratus).","authors":"A W Park,&nbsp;B J Nowosielski-Slepowron","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The objective was to assess the effect of the hereditary myopathic disease (muscular dystrophy) on 4 growth parameters: body-weight, head-body length, skull weight and cranial length in the Syrian hamster over a 4-13 month period. A control colony of 34 males and 32 females was compared to a muscular dystrophy colony consisting of 37 males and 27 females. The monthly means of the 4 growth parameters were computed and full data were used for computations of analysis of variance with regression of each group, sex and growth parameter. Intersex and intergroup comparisons of the same parameters were made using analysis of covariance. In the controls, the male bodies were heavier and longer than the female bodies; males grew over the total period. In dystrophic hamsters, males were heavier than females, but females were longer. In both control and dystrophic hamsters, female skulls were longer and heavier. In all parameters the means of the control colony were greater than those of the dystrophic colony relative to age. The disease factor in the muscular dystrophy colony adversely influenced all 4 growth parameters.</p>","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 3-4","pages":"193-206"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13778134","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
Pieter Dullemeijer, professor of animal morphology. Pieter Dullemeijer，动物形态学教授。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
J L Dubbeldam, H J de Jongh, J W Osse
{"title":"Pieter Dullemeijer, professor of animal morphology.","authors":"J L Dubbeldam,&nbsp;H J de Jongh,&nbsp;J W Osse","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"9-16"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13823229","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
On phylogenetic constraints. 关于系统发育约束。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
C Gans
{"title":"On phylogenetic constraints.","authors":"C Gans","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"133-8"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13954343","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
Mathematical and philosophical reflections on motor control systems. 对运动控制系统的数学和哲学思考。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
E Otten
{"title":"Mathematical and philosophical reflections on motor control systems.","authors":"E Otten","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In line with the tradition of the Dutch school of functional morphology, an attempt is made to integrate numerical models of sarcomeres, muscle fibres, muscles, bone-connective-tissue systems, joints, muscle spindles and neural networks into one model simulating motor control. There are two purposes for this attempt. Firstly, to indicate whether numerical properties of the organs forming a system of motor control can be explained in terms of its motor functions. Secondly, to indicate properties that emerge from the integration of the organs into a system of motor control: how much more is an integrated motor system than the sum of its functional components. The motor control system of chewing has been taken as an example, particularly that in rats.</p>","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"163-79"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13823226","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
Shape and structure of the avian brain an old problem revisited. 鸟类大脑的形状和结构是一个老问题。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
J L Dubbeldam
{"title":"Shape and structure of the avian brain an old problem revisited.","authors":"J L Dubbeldam","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Previously two approaches have been used to study the relation of shape and structure of the avian brain. One possibility is to consider shape, size and position of the brain as elements of the architecture of the head. The other approach was to consider the shape of the brain as expression of its structure. The significance of the two approaches for the explanation of the shape of the avian telencephalon is discussed in the light of recent data of brain organization. The two approaches are complementary in the explanation of position, size and shape of the brain.</p>","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"33-43"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13823228","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
Functional morphology and phylogenetic testing within the framework of symecomorphosis. 同形发育框架内的功能形态学和系统发育测试。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
K F Liem
{"title":"Functional morphology and phylogenetic testing within the framework of symecomorphosis.","authors":"K F Liem","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>On the basis of the contrasting evolutionary patterns of the Teleostei and the \"Chondrostei\" the merit of phylogenetic testing is summarized as a non-arbitrary method for assessing the possible role of various designs in producing differential morphological diversity in different lineages. Arguments are presented for the recognition of a genealogical (reproductive, informational) and an ecological hierarchy. Various levels are proposed within hierarchies, because there are processes intrinsic to each level that are not reducible to those of lower levels or subsumed by higher levels. Mutual influences exist between successive levels within a hierarchy and possible interhierarchical mutual influences are hypothesized between organisms, demes, and avatars, and from the germ line to functional units. The term symecomorphosis is proposed to denote the balanced symmetry of the co-existing and mutually interdependent ecological and genealogical hierarchies. Symecomorphosis predicts that a disturbance in environmental systems can destroy this balance with profound effects on the genealogical hierarchy. Using the evolutionary differentiation of four lineages of air breathing teleosts as an example, it is demonstrated how the principle of symecomorphosis can be included in tests establishing a causal relationship between design and differential diversity among lineages.</p>","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"119-31"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13954342","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 model of the human knee, derived from kinematic principles and its relevance for endoprosthesis design. 基于运动学原理的人类膝关节模型及其与人工关节设计的相关性。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
A Huson, C W Spoor, A J Verbout
{"title":"A model of the human knee, derived from kinematic principles and its relevance for endoprosthesis design.","authors":"A Huson,&nbsp;C W Spoor,&nbsp;A J Verbout","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A mainly deductive kinematic model of the human knee is described. The modelling procedure is based upon the application of a four-bar mechanism. Emphasis has been laid upon elucidating the functional anatomical relationship between several morphological characteristics concerning the shape of the articular surfaces and the constellation of the cruciate ligaments. Starting from a simple planar model, which simulates motions in a sagittal plane only, a spatial model was developed, which allowed an additional longitudinal rotation of the tibia also. The conclusions drawn from this modelling procedure have been used to evaluate from an functional anatomical point of view the current designs of presently available endoprostheses for the knee.</p>","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"45-62"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13954345","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
Histomorphological changes in the oviduct of the mallard (Aves: Anatidae). 绿头鸭(鸭科)输卵管的组织学变化。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
R K Sharma, P L Duda
{"title":"Histomorphological changes in the oviduct of the mallard (Aves: Anatidae).","authors":"R K Sharma,&nbsp;P L Duda","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Studies on histomorphometrical changes in different segments (infundibulum, magnum, isthmus, shell gland and vagina) of oviduct of mallard, Anas platyrhynchos during active and quiescent phases of the reproductive cycle have been made. The absolute and per cent length and width of each segment showed a marked change. The magnum showed an increase of 280 per cent. Of all the histological parameters studied the number and height of mucosal folds and mucosal epithelium showed more marked increase in all segments of oviduct. The size of tubular glands and frequency of ciliated and secretory cells were studied in relation to oviductal activity.</p>","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 3-4","pages":"183-92"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13778132","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 functional significance of morphological variation of the human mandible and masticatory muscles. 人下颌骨和咀嚼肌形态变异的功能意义。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
W A Weijs
{"title":"The functional significance of morphological variation of the human mandible and masticatory muscles.","authors":"W A Weijs","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A review is given of what is known about the functional significance of variation of the morphology of the human mandible and jaw muscles. First, the mandible is a lever transferring muscular forces to the teeth. The angle between corpus and ramus and the width of the ramus are particularly relevant in this respect as they determine the mechanical advantage of the lever system and the capacity for sagittal (open-close) movement. The stability of the mandible in asymmetric bites is especially affected by the ratio between the intermolar and intercondylar distances. The repertoire of bite forces that can be generated at any tooth and the loading pattern of the temporomandibular joint are strongly dependent on the relative size of the masseter, temporalis and medial pterygoid muscles. Second, executing its function as a lever, the mandible is subjected to shearing, bending and torsional forces. The bony parts harbouring the teeth, joints and muscle attachments serve to counter these forces; additional strength is needed in three areas i.e. in the symphysis, the condylar neck and in the transition area between corpus and ramus. In human populations there are clear-cut patterns of correlation between some facial skeletal traits, jaw joint morphology and strength and line of action of the jaw muscles. As a result, facial morphologies can be distinguished with marked differences in mechanical performance of their masticatory apparatus. It is suggested that they emerge as a result of diverging environmental influences during postnatal growth.</p>","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"149-62"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13823225","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
Explanations in functional morphology. Proceedings of a symposium held on the occasion of the retirement of Dr Pieter Dullemeijer, Leiden University--August 31-September 1, 1989. 功能形态学的解释。1989年8月31日至9月1日，莱顿大学Pieter Dullemeijer博士退休之际举行的研讨会论文集。
Acta morphologica Neerlando-Scandinavica Pub Date : 1989-01-01
{"title":"Explanations in functional morphology. Proceedings of a symposium held on the occasion of the retirement of Dr Pieter Dullemeijer, Leiden University--August 31-September 1, 1989.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75392,"journal":{"name":"Acta morphologica Neerlando-Scandinavica","volume":"27 1-2","pages":"1-179"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13823224","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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