Histological study of human fetuses vertebral column ossification.
نویسندگان
چکیده
منابع مشابه
Ossification of the vertebral column in human foetuses: histological and computed tomography studies.
There is no agreement in the literature as to the time of the onset and progress of the vertebral column ossification. The aim of the present study was to determine the precise sequence of ossification of the neural arches and vertebral centra.Histological and radiographic studies were performed on 27 human foetuses aged from 9 to 21 weeks. It was found that the ossification of vertebrae commen...
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The ossification centers onset of the quail vertebrae, ribs, and sternum in embryos and hatchling birds was studied. Specimens were cleared, stained with Alcian Blue and Alizarin Red S and examined using stereomicroscope. The chondral rudiments of the vertebrae were observed at the 6th day of incubation (E6). The osteogenesis of the vertebrae was accomplished with both perichondral a...
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The development of the bone marrow of the thoracic vertebrae in seven human fetuses ranging from 95 to 150 mm in crown-rump length (CRL) was studied using light and electron microscopy. In the 95-mm CRL, hypertrophy of the chondrocytes occurred in the central region of the vertebrae, and blood vessels penetrated there from dorsal and ventral sides of the vertebral body. The primary marrow was r...
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INTRODUCTION Knowledge on the normative spinal growth is relevant in the prenatal detection of its abnormalities. The present study determines the height, transverse and sagittal diameters, cross sectional area, and volume of individual C1-S5 vertebral bodies. MATERIAL AND METHODS Using the methods of computed tomography (CT), digital image analysis, and statistics, the size of C1-S5 vertebra...
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ژورنال
عنوان ژورنال: Morphologia
سال: 2019
ISSN: 1997-9665
DOI: 10.26641/1997-9665.2019.2.27-36