haversian canal

1. In the center of each system is an Haversian canal which carries blood vessels.
   的中央都有一个中央管，其内都有血管走行。
2. Methods: After the model of right ulna fracture was established in rabbits, the changes of mechanical testing, callus area, cortical thickness and Haversian canal diameter of fracture site were observed by treatment of TGF-β around the fracture site using the different administering methods.
   方法：采用兔右尺骨骨折模型，不同给药方式下在骨折区给予TGFβ，观察骨折愈合后生物力学、骨痂面积、皮质骨厚度和哈佛氏管直径的变化。
3. Results: Devitalized bone appeared almost 100% empty lacunae and Haversian Canal broke up in early stage.
   结果：灭活骨早期空陷窝率近100%，哈佛氏管扩大、崩解；
4. The bone matrix was observed in circular arrangement along the Haversian canal and the calcium-phosphorus crystal was in regular alignment under scanning electron microscope.
   在扫描电镜下，骨基质呈环形沿哈佛系统排列，钙-磷晶体之间相互呈规则排列。
5. Results: Like group E, group A excelled at the performance of new bone formation rate, bone porosity, osteon radius, and diameter of Haversian canal as compared to group B, C, D.
   结果：A组在新骨形成率、骨孔隙率、骨单位半径和哈佛氏管直径等方面均优于B、C、D组，与E组相仿。
6. Based on the physiological structure of osteon, the model of osteon with liquid was provided, in which the osteon was described as the thick-walled cylinder and the Haversian canal was full of tissue fluid.
   基于骨单元的生理结构特性，将骨单元作为厚壁圆筒结构，其内部哈弗氏管内充满组织液。
7. The host bone marrow takes main effect on the blood and bone regeneration of massive allogenic cortical transplants by the Haversian canal.
   宿主骨髓通过哈佛氏管，对异体皮质骨内部的血运重建和成骨活动中起着重要作用。

noun

1. any of the many tiny canals that contain blood vessels and connective tissue and that form a network in bone