A) no impulse is transmitted
B) impulse is transmitted but slowly
C) impulse is transmitted fast
D) no effect on impulse
Correct Answer: A
Solution :
Spinal nerve is a mixed nerve which arises from grey matter of spinal cord. Spinal nerves have two roots. The dorsal root is sensory and the ventral root is motor. If dorsal nerve of spinal cord is broken down, the pathway of nerve will break, so, no impulse will transmitted.
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