Cellular marrow is seen between the spicules of bone 可见蜂窝状骨髓位于骨板之间。
Early cambrian sponge spicule fossils from zhenba county , southern shaanxi province 陕西镇巴早寒武世海绵骨针化石
The bony spicules are even , with occasional lacunae containing osteocytes 骨板连续均一,偶尔可见包含骨细胞的腔隙。
Tetraxon tetraxial spicule 四轴骨针
There is reactive new bone with pale pink osteoid being laid down next to a bony spicule at the upper left 并有反应性的新骨生成,在靠近左上部骨板处呈现淡红色类骨质。
Osteoblasts can be seen lining the lacunae in the newly developing fetal bone , and they deposit bone along calcified cartilagenous spicules 在新生骨的骨陷窝周可见成骨细胞排列,这些细胞在钙化的软骨化骨周围沉积成骨。
Sponges have an irregular , asymmetrical body architecture ; there are two cell layers separated by a gelatinous mesenchyme containing amoeboid cells and skeletal spicules and fibers 海绵动物有不规则、不对称的体制;二层细胞是由中间的凝胶状的间叶细胞分开,内含有变形细胞(阿米巴细胞) 、骨针和纤维。
Based on the quantitative studies of siliceous microorganisms and terrestrial detritus in 12 surface sediment samples , which were recovered by the first chinese national arctic expedition team , in the bering sea , it goes without saying that diatom abundance is dominant within the microorganisms which consists of diatoms , radiolarians and sponge spicules 摘要中国首次北极科学考察在白令海?取了12个表层沉积物样品,其中对矽质生物和陆源碎屑的详细研究发现,它们主要由矽藻、放射虫和海绵骨针组成。
英文解释
small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals 同义词:spiculum,
百科解释
Spicules are tiny spike-like structures of diverse origin and function found in many organisms, such as the copulatory spicules of certain nematodes or the grains on the skin of some frogs. In sponges, spicules perform a structural function.