<prompt> After thyroidectomy cadeveric position of vocal cords are due to:Unilateral recurrent laryngeal nerve paralysis.Bilateral recurrent laryngeal nerve paralysis.Unilateral external laryngeal nerve paralysis.Bilateral external laryngeal nerve paralysis.  <response>: In case of bilateral recurrent laryngeal nerve paralysis, the vocal cords will be motionless, lying in a cadaveric position. Immediate tracheostomy is the life-saving measure. 