单项选择题
A.胸大肌B.胸小肌C.肋间外肌D.肋间内肌E.前锯肌
A.肋间外肌前端接肋间外膜B.肋间内肌前端接肋间内膜C.上部肋间隙较下部宽D.前部肋间隙较后部宽E.12对肋之间形成11对肋间隙
A.肋间后静脉、肋间后动脉、肋间神经B.助间后动脉、助间后静脉、助间神经C.肋间神经、肋间后静脉、肋间后动脉D.肋间神经、肋间后动脉、肋间后静脉E.肋间后静脉、肋间神经、肋间后动脉