Card 13 / 60: Dorsal root ganglia: (circle all true statements; 2 points)
A) Contain the first order neurons of Meissner and Merkel receptors, joint receptors, muscle spindles but not of free nerve ending which are in the dorsal horn.
B) Are considered part of the central nervous system
C) At the level of the lumbar spinal cord are important for the knee jerk reflex
D) Are functionally equivalent to the spiral ganglion (auditory)

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