The pith of this stemlike stele appears rather strongly like collenchyma tissue.茎状中柱的髓显得颇强健,像厚角组织.Collenchyma cells have thick walls that are especially developed at the corners of the cell.厚角组织细胞尤其在细胞的各个角上具有厚壁....
Obstruction of the ileum by stone leads to distinct clinical pictures.回肠胆结石梗阻可引起各种明显的临床征象.The ileocecal valve and terminal ileum are usually dilated rather than stenosed.回盲部和末端回肠常呈扩张面而不狭窄.The terminal ileum is filled wit...