The Autonomic Nervous System and Higher Order Functions

The Autonomic Nervous System and Higher Order Functions -...

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The Autonomic Nervous System and Higher Order Functions An Overview of the ANS ANS • Coordinates cardiovascular, respiratory, digestive, urinary and reproductive functions • Preganglionic neurons in the CNS send axons to synapse on ganglionic neurons in autonomic ganglia outside the CNS Divisions of the ANS • Sympathetic division (thoracolumbar, “fight or flight”) • Thoracic and lumbar segments • Parasympathetic division (craniosacral, “rest and repose”) • Preganglionic fibers leaving the brain and sacral segments The Sympathetic Division Sympathetic division anatomy • Preganglionic neurons between segments T1 and L2 • Ganglionic neurons in ganglia near vertebral column • Specialized neurons in adrenal glands Sympathetic ganglia • Sympathetic chain ganglia (paravertebral ganglia) • Collateral ganglia (prevertebral ganglia) Organization and anatomy of the sympathetic division • Segments T1-L2, ventral roots give rise to myelinated white ramus
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The Autonomic Nervous System and Higher Order Functions -...

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