The Human Body's Nervous System

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* What is the job of the central nervous system (CNS)? The central nervous system, also known as the CNS, consists of three(3) major components of the human body: * Brain – the brain is made up of three(3) parts: the cerebrum, the diencephalon, and the hindbrain. * Nerve Tissue – this part of the CNS is comprised of neurons, synapses, and neurotransmitters. * Spinal Cord – protected by vertebrae in the back, the spinal cord is made up of fiber tracts and spinal nerves.
(Pedersen DD; PsychNotes: Clinical Pocket Guide, 3rd ed, F.A. Davis Company, 2011, Ch. 9, pg. 1)
One of the two major divisions of the human body’s nervous system, the central nervous system is responsible for integrating sensory information and responding accordingly. In other words, its job is to get information from the body and send out instructions to the body. * What is the job of the peripheral nervous system (PNS)? The peripheral nervous system, or PNS, is made up of two(2) components of the human body: * Afferent System – this system is made up of somatic and visceral sensory neurons. * Efferent System – this part of the PNS controls the somatic nervous system (somatic motor neurons), as well as the parasympathetic nervous system, both of which are made up visceral motor neurons.
(Pedersen DD; PsychNotes: Clinical Pocket Guide, 3rd ed, F.A. Davis Company, 2011, Ch. 9, pg. 2)
The other major division of the human body’s nervous system, the peripheral nervous system, consists of all of the nerves and “wiring” running all over the human body. Its job is to send the messages from the brain, where the CNS resides, to the rest of the body. * Describe what happens with these systems when doing 1 of the following:
(for this exercise, I chose ‘eating ice cream’) * Eating ice cream * At times, while eating ice cream, one might experience…...

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