If dorsal root of spinal cord is broken down then its effect is

No effect on impulse

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Impulse is transmitted fast

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Impulse is transmitted but slowly

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No impulse is transmitted from receptor

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Solution

The correct option is D No impulse is transmitted from receptor
The dorsal root or the posterior root is the main bundle of nerve fibers that branch off from the spinal cord to enter other areas of the body. This combines with the ventral root to form the spinal nerve and becomes the afferent sensory root and is responsible for carrying and transmitting the sensory information from the body to the brain for processing the signals by the brain. If the dorsal root is broken, then the transfer of information will not be possible.
Thus, the correct answer is option D.

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