Explain why trauma to the base of the brain

Q1. Both endocrine and nervous systems are major regulating system of the body; though, nervous system has been compared to an airmail delivery system and the endocrine system to the pony express. In brief explain this comparison.
Q2. Explain why trauma to the base of the brain is often more dangerous than trauma to the frontal lobes. (Hint: think about the relative functioning of the cerebral hemispheres and the brain stem structures. which contain centers more vital to life?)

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