12-03-2008, 06:42 PM
Which of the following neural crest derivatives is involved in congenital absence of pain perception?
A. Large-diameter neurons of dorsal root ganglia
B. Postganglionic parasympathetic neurons
C. Postganglionic sympathetic neurons
D. Schwann cells
E. Small-diameter neurons of dorsal root ganglia
A. Large-diameter neurons of dorsal root ganglia
B. Postganglionic parasympathetic neurons
C. Postganglionic sympathetic neurons
D. Schwann cells
E. Small-diameter neurons of dorsal root ganglia