Medial inferior genicular artery and inferior patellar branch of the descending genicular arterial articular branch merge and accede to prepatellar ring on inferior medial to patella.
于髌骨内下方参与形成髌周动脉环的膝降动脉关节支的髌下支或膝下内动脉干长、位置恒定。
2
First of all, Beijing has a developed transportation network, supported by 5-ring roads and numerous arterial and connecting roads.