secondary osteons次级骨单位
1.(2)Many secondary osteons are found in humerus or femur of some large birds such as Crossoptilon auritum,Tetraogallus himalayensis,Syrmaticus reevesii, Aegypius monachus,but not in small birds.(2)一些大型鸟类如:蓝马鸡、暗腹雪鸡、白颈长尾雉、秃鹫等的肱骨或股骨的骨组织中发现有大量的次级骨单位,而在小型鸟类中这种现象很少见,说明次级骨单位与鸟类骨骼的承重能力的强弱有关。
3)primary bone marrow初级骨髓
4)primary bone trabecula初级骨小梁
5)primary marrow cavity初级骨髓腔
6)PAN,primary account number初级帐号单
延伸阅读
初级1.最初阶段的。
