posterior cutaneous nerve of forearm

例句：

1. 1. The posterior cutaneous nerve of the forearm is responsible for sensation in the skin on the back of the hand and wrist.
   前臂后皮神经负责手和手腕背面皮肤的感觉。
2. 2. During surgery, the surgeon must identify and protect the posterior cutaneous nerve of the forearm to avoiddamaging it.
   在手术过程中，外科医生必须识别并保护前臂后皮神经，以避免损伤它。
3. 3. The posterior cutaneous nerve of the forearm is an essential component of the brachial plexus, which controls the movement of the arm.
   前臂后皮神经是臂丛的一部分，控制手臂的运动。