Since Jerry's accident, he has had no sensations in his injured leg. Based on the functional classifications of neurons, discuss the type of neuron that has been damaged. Why has he not regained lost nerve function?
What will be an ideal response?
Jerry has damaged a sensory, or afferent, neuron. Sensory neurons carry information toward the central nervous system. Sensory neurons receive information from sensory receptors and transmit this information to their cell bodies in the PNS, then down their axons to the brain or spinal cord. Jerry has not regained sensation in this injured leg because most neurons are amitotic, meaning that neurons have lost the ability to undergo mitosis and repair themselves. These neurons did not regenerate causing permanent loss of sensation.
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