The other side of the ring finger and pinky are served by the ulnar nerve.

环指尺侧半和小指由尺神经支配。

So I'm gonna find your ulnar nerve, which is probably right around here.

我要找到你的尺神经，大概在这个位置。

This leads to dysfunction of the median and ulnar nerves since they contain fibers from these roots.

这会造成正中与尺神经功能，因为这两条神经含有来自C8、T1神经根的神经纤维。

The other side of the ring finger and the pinky are innervated by the ulnar nerve.

无名指另侧小指由尺神经支配。

The funny bone can be a very painful injury and it's usually very temporary but what happens is you have an ulnar nerve.

肱骨内髁部可能是非常痛苦的伤害，通常是暂时的，但是你有尺骨神经。

So an injury to the ulnar nerve causes a loss of movement of the little finger and the inability to abduct or adduct all 4 fingers.

所以尺神经受损会导致小指运动四指外展内收。

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。

Similarly, the ulnar nerve supplies the hypothenar muscles which control the little finger, the interossei muscles which abduct and adduct the fingers, meaning to spread or bring them together.

同样，尺神经支配小鱼际肌，控制小指运动，并支配骨间肌控制手指外展内收，即伸展或聚拢手指。

The funny bone sensation is when you actually hit the ulnar nerve, which is pretty superficial right here as it comes around the medial epicondyle of your upper arm bone.

麻筋儿这种感觉是当你击中尺神经时产生的，它非常浅，因为它围绕着你上臂骨的内上髁。

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。

This is your ulna right here and this is your radius and what happens in people that require Tommy John surgery is they end up having a rupture of this tendon called the ulnar collateral ligament.

这是你的尺骨，这是你的桡骨，需要汤米·约翰手术的人是因为发生了肌腱断裂，称为尺骨侧副韧带。