If after cutting through the dorsal root of a spinal nerve of a mammal, an associated receptor in the skin was stimulated, the animal would

Question

If after cutting through the dorsal root of a spinal nerve of a mammal, an associated receptor in the skin was stimulated, the animal would (A) show no response (B) show a normal but slow response (C) still able to feel the stimulation (D) respond but only at a different level of spinal cord

Tardigrade Admin · Accepted Answer

Spinal nerve is mix type of nerve and carries motor, sensory and autonomic signals. Spinal nerve is formed from its dorsal and ventral roots. Ventral root carries motor information from brain which is efferent motor root and dorsal root carries sensory information to the brain which is afferent sensory root. If the dorsal root is damaged, there would be no sensations reaching the spinal cord and hence there would be no motor response

Q. If after cutting through the dorsal root of a spinal nerve of a mammal, an associated receptor in the skin was stimulated, the animal would

show no response

show a normal but slow response

still able to feel the stimulation

respond but only at a different level of spinal cord