On the contrary, muscles of the forearm opposed the action of the lumbricals.

相反，前臂肌群拮抗蚓状肌的运动。

When the ulnar and median nerves get damaged, muscles in the forearm override the action of the lumbricals, causing the hand to look like a claw.

当尺神经与正中神经受损时，前臂肌群的作用强于蚓状肌，造成手部呈爪型。

Finally, both the ulnar and median nerves innervate the lumbricals, which are 4 muscles that extend the fingers at the interphalangeal joints, and keep them flexed at the metacarpal phalangeal joints.

最后，尺神经和正中神经都支配蚓状肌，这四条蚓状肌能使指间关节的手指伸直，同时掌指关节保持屈曲位。