Trabecula (pl. trabeculae) An elongated cell wall, cell, or line of cells across a cavity.横隔：是横贯空腔的一段延伸细胞壁、一个细胞或一列细胞，可将空腔隔成两个或多个空间。
By the -8 week, there has been bone trabecula joining the two union sites, osteogenic cell and osteoblast grew briskly a移植后一8周,两接合端已有骨小梁连接,异体骨皮质周围骨原细胞和成骨细胞生长活跃;