Final answer:
The statement 'Either CNS cell body injury or axon damage leads to regeneration of the nerve tissue that was injured' is False.
Step-by-step explanation:
The statement "Either CNS cell body injury or axon damage leads to regeneration of the nerve tissue that was injured" is False.
In the peripheral nervous system (PNS), if a traumatic injury results in a nerve being cut all the way through, it may regenerate, but this process is slow and can take many months. However, in the central nervous system (CNS), including the brain and spinal cord, regeneration is limited and often does not occur.
Examples of disorders in the PNS include diabetes, infectious diseases like shingles, and poisoning by toxins such as heavy metals. These disorders can cause nerve injury and may result in symptoms like loss of feeling, tingling, burning sensations, or muscle weakness.