How fast can a nerve grow after one has died and how?

After death, nerve growth ceases as cellular processes stop and the body begins to decompose. In living organisms, peripheral nerves can regenerate at a rate of about 1 millimeter per day, facilitated by the body's ability to produce growth factors and support cells. However, once a person has died, this regeneration is no longer possible, and the nerves will deteriorate due to the lack of oxygen and nutrients.