May I ask where is the hamstring in a person?

Friend, I am a surgeon. You said the situation, may be watching martial arts novels or martial arts TV influence, in fact, the author of the novel is to create a kind of suspense and special effects, in today's is not credible. The "hamstring" you are referring to is the human tendon, which is the lower part of the muscle in the lower leg that is attached to the heel bone and plays an important role in the walking of a person. If it is damaged or ruptured, a person cannot walk. The patient can get effective treatment in the hospital, and after the patient is cured, after a period of exercise, the patient can walk, run, and can also bear weight.