Functional and developmental morphology最新文献_第6页

Contribution to the study of the development and ossification of human sternum. 对人类胸骨发育和骨化研究的贡献。

Functional and developmental morphology Pub Date : 1993-01-01

M Doskocil

{"title":"Contribution to the study of the development and ossification of human sternum.","authors":"M Doskocil","doi":"","DOIUrl":"","url":null,"abstract":"We have studied the development of sternum in man. Complete microscopic series of sections through thorax of human embryos and fetuses from the second and third months of gestation served as the research material. Preparations were stained by Alcian blue and Mayer's haematoxyline, counterstained by eosine. We also had a set of macroscopic preparations of sterna and adjacent parts of ribs from fetuses of the fifth and sixth months of gestation. These specimens were stained by Alcian blue and by Alizarine and subsequently cleared by glycerine method. We have found that sternum develops by a fusion of sternal bars. Sternal bars develop from anterior bent parts of ribs, lying one over another like tiles. The newly formed sternum has different proportions in comparison to its definitive state. In all the cases its manubrium is wider and bigger, its xiphoid process is longer, in almost all the cases doubled or at least bifurcated. The sternocostal junctions are provided with interzones with the exception of the first rib. Its primordium continues into sternum without any border. Clavicle is connected with sternal anlage without any visible border and this interzone quickly develops as the primordia of the sternoclavicular articulation and the disc. In the medial part, there is a cartilaginous model which ossifies very early--as the first bone of the body. In young embryos from the end of the second month of gestation the clavicle and sternum show very different structures. Ossification of the sternum begins in the fifth month by developing a large number of very small centers of ossification which are not yet detectable by X-ray or CT.(ABSTRACT TRUNCATED AT 250 WORDS)","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"3 4","pages":"251-7"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18945509","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 epipharynx in normo- and pathogenesis. 在正常和发病机制的上咽。

Functional and developmental morphology Pub Date : 1993-01-01

S Sumida

引用次数: 0

Structure and development of the internal male reproductive organs in the dragonfly Tramea virginia (Rambur). 雌雄蜻蜓内部生殖器官的结构与发育。

Functional and developmental morphology Pub Date : 1993-01-01

R J Andrew, D B Tembhare

引用次数: 0

Regio preoptica hypothalami in the goose (Anser Anser f. Domestica). 鹅的下丘脑前区（Anser-Anser.Domestica）。

Functional and developmental morphology Pub Date : 1993-01-01

P Rehák, D Kostová

引用次数: 0

Electron microscopic and light microscopic investigation of endomyocardial biopsies in the transplanted heart. 移植心脏心肌内膜活检的电镜和光镜观察。

Functional and developmental morphology Pub Date : 1993-01-01

A Seichertová, D Urbanová

引用次数: 0

Associated professor MUDr. Jirí Hert, PhD.--his 65th anniversary. 副教授。Jirí Hert博士这是他65周年纪念日。

Functional and developmental morphology Pub Date : 1993-01-01

J Kos, S Kos

引用次数: 0

The differentiation and involution of the müllerian duct in the rat. 大鼠<s:1>勒氏管的分化与退化。

Functional and developmental morphology Pub Date : 1993-01-01

Z Jirsová, Z Vernerová

引用次数: 0

A scanning electron microscopic study on three-dimensional organization of human diaphragmatic lymphatics. 人膈淋巴管三维组织的扫描电镜研究。

Functional and developmental morphology Pub Date : 1993-01-01

J Li, B Jiang

{"title":"A scanning electron microscopic study on three-dimensional organization of human diaphragmatic lymphatics.","authors":"J Li, B Jiang","doi":"","DOIUrl":"","url":null,"abstract":"Three-dimensional organization of diaphragmatic lymphatics in five fetuses was studied by the lymphatic casts of scanning electron microscope. A new resin consisting of piperylene, acrylic ester and styrene was used instead of Mercox. The diaphragmatic lymphatics formed rich networks in the muscular portion. There were two layers of lymphatic networks, i.e. the submesothelial network and the deeper network and only one layer in the tendinous portion of the diaphragm. The lymphatic networks were more dense in the tendinous portion than these in the muscular portion. The lymphatics were mainly composed of main lymphatic vessels and anastomosing side branches. The side branches often communicated the submesothelial network with the deeper network in the muscular portion. The main lymphatics were connected at regular intervals by way of transverse side branches in the tendinous portion. Numerous constrictions and notches showing the presence of lymphatic valves were often found on the cast surface of the main lymphatic vessels and the side branches. The lymphatics extended as far as the terminal branches, i.e. the lymphatic lacunae recognized as broad, flattened and blind-ended. In the present study, three-dimensional organization of human diaphragmatic lymphatics was for the first time described. It was suggested that the passageway of the lymph flow out of the peritoneal cavity may be explained. From the peritoneal stomata, the lymph of the peritoneal cavity flowed into the channels under the peritoneum, then into the lymphatic lacunae and finally into the lymphatic networks under the diaphragmatic pleura.","PeriodicalId":12562,"journal":{"name":"Functional and developmental morphology","volume":"3 2","pages":"129-32"},"PeriodicalIF":0.0,"publicationDate":"1993-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19275432","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

Clinical and cytogenetical findings in five patients with the Prader-Willi syndrome. 5例Prader-Willi综合征的临床和细胞遗传学研究。

Functional and developmental morphology Pub Date : 1992-01-01

M Krkavcová, Y Franková, M Stloukalová, J Zidovská, J Kapras

引用次数: 0

Morphology of the adrenal homologues in two hillstream teleostean fishes from India. 两种印度山溪硬骨鱼肾上腺同源物的形态学研究。

Functional and developmental morphology Pub Date : 1992-01-01

T S Gill, J C Punetha, H Tewari

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