NURS140 Lecture Notes - Lecture 7: Vagus Nerve, Prevertebral Ganglia, Celiac Plexus
18 Nov 2016
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Document Summary
Compare the structural and functional characteristics of the somatic and autonomic nervous system. Identify the principal structural features of the autonomic nervous system. Describe the preganglionic and postganglionic neurons of the autonomic nervous system. Compare the sympathetic and parasympathetic divisions of the autonomic nervous system in terms of structure, physiology and neurotransmitters released. Describe the levels of integration and control of the autonomic nervous system. The autonomic nervous system functions outside of our conscious awareness. The autonomic nervous system makes routine adjustments in our body"s systems. Coordinates cardiovascular, respiratory, digestive, excretory, and reproductive functions. Somatic nervous system consciously perceived sensations excitation of skeletal muscle one motor neuron connects cns to organ. Preganglionic neuron cell body in brain or spinal cord axon is myelinated type b fiber that extends to autonomic ganglion. Postganglionic neuron cell body lies outside the cns in an autonomic ganglion axon is unmyelinated type c fiber that terminates in a visceral effector.
