Multiple types of neural tissues arise from the neural crest, including sympathetic ganglia, parasympathetic ganglia, spinal ganglia and the enteric nervous system. Non-neural cells derived from the neural crest include melanocytes, satellite cells of ganglia, Schwann cells and the adrenal medulla.
The definition of a soffit is the underside of a piece of architecture. An example of a soffit is the underside of an arch. soffit. the horizontal underside of an eave, cornice, etc. soffit.
Soffits can also be used as a decorative architectural detail, such as building a soffit down to meet upper kitchen cabinets. If this is the case in your design, be sure to factor in the size of your cabinets when measuring and marking the wall and ceiling for your soffit.