shadow of psoas muscle

例句：

1. 1. The patient's condition worsened, and he needed to be moved to a more comfortable position.
   患者的病情恶化，需要被移到一个更舒适的体位。
2. 2.The doctor explained that the patient's psoas muscle was weak, which could affect his ability to move around.
   医生解释说，患者的腰方肌无力，这可能会影响他移动的能力。
3. 3.During surgery, the surgeon carefully removed the patient's psoas muscle to avoid damaging nearby nerves.
   在手术过程中，外科医生小心地切除了患者的腰方肌，以避免损伤附近的神经。