Question

An injury to the nervous system results in nervousness and hyperactivity. Which division of the nervous system was damaged by the injury?

Answer 1

Damage to the nervous system can cause changes in sensory input (loss of vision, hearing, smell, etc.), can hinder the capacity to control movement and body functions and/or can affect the brain's capacity to treat or store information. In addition, altered nervous system functioning can cause behavioural or psychological disorders. Mood and personality changes are a common occurrence following physical or organic damage to the brain. As our knowledge develops, we are learning more about the way in which nervous system processes are modified. Neurotoxic substances can cross the brain's natural barrier and directly interfere with its intricate workings. Although some substances have a particular affinity to certain areas of the nervous system, most neurotoxins have widespread effects, targeting cell processes involved in membrane transport, internal cellular chemical reactions, liberation of secretory substances, and so on.
Damage to the various components of the nervous system can occur in different ways: