The procedure is called VAGUS NERVE STIMULATION. Try a search on that and a lot of websites will come up. The company site is http://www.vnstherapy.com/
Yes, a nerve that is cut during surgery will eventually heal.
Answer... They operate on the brain, spine[when nerve damage is present], do nerve biopsies... that sort of thing... too numerous to catalog here... Why not do a 'net search. There is a great deal of information for you.
The Laryngeal Nerve.
there is no such thing
Nerve problems would probably be best treated by a neurologist and depression can be treated by a psychiatrist, a family physician, or an internal medicine physician, but a psychiatrist might be the way to go for depression.
The vestibular part of the vestibulocochlear nerve will send information about the equilibrium and balance.
This gap is called the synapse. It takes something to cross it to stimulate the next nerve cell to carry the information to it's destination. This would either be a neurotransmitter or an ion. Blocking the gap stops the information. If you get a nerve block so surgery can be done, this is what happens.
Marginal mandibular branch of the facial nerve.
ETS Surgery, or Endoscopic Thoracic Sympathectomy, is a surgical procedure that destroys certain parts of the sympathetic nerve trunk. This procedure is used to reduce facial blushing and cure a few other facial nerve related diseases.
The auditory nerve
Yes, exercise does help with depression. It releases chemicals in your body that your brain needs and stimulates a happy nerve.
Cranial Nerve 2 - Optic Nerve