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| genicular articular arterial rete (由股动脉、腘动脉、胫前动脉和股深动脉的分支在膝关节囊周围和髌骨前面吻合形成。参与吻合的动脉主要有旋股外侧动脉降支、膝降动脉、膝上内侧动脉、膝上外侧动脉、膝中动脉、膝下内侧动脉、膝下外侧动脉、胫前返动脉和股深动脉的第3、4穿动脉。膝关节运动时动脉可受牵拉和压迫，动脉网有利于保证血液循环通畅。当胫动脉损伤或栓塞时,膝关节动脉网可成为侧支循环途径,保证肢体远端的血供) | |||
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