<prompt> All are derivatives of Neural Crest exceptDorsal nerve root gangliaNeurons of sympathetic gangliaNeurons of parasympathetic gangliaNeurons of sensory ganglia of 1, 2 and 8  <response>: Several impoant structures are derived from the neural crest. These are:1. The neurons of the spinal posterior dorsal nerve root ganglia.2. The neurons of the sensory ganglia of the fifth, seventh, eighth, ninth and tenth cranial nerves.3. The neurons and satellite cells of the sympathetic ganglia: the preaoic ganglia.4. The neurons and satellite cells of parasympathetic ganglia of cranial nerves i.e. ciliary, submandibular, sphenopalatine and otic.5 The parasympathetic ganglia enteric ganglia of the gastrointestinal tract and ganglia related to pelvic viscera.6 The Schwann cells that form the neurolemmal sheaths of all peripheral nerves.7 The specific cells of the adrenal medulla. Chromaffin tissue.8 The pigment cells melanoblasts of the skin.Reference: Inderbir Singh Embryology; 10th edition 