The Autonomic Nervous System Chapter 15

1. Background
   1. ANS
   2. Comparison - somatic vs autonomic
      1. effector organs
      2. structure
         1. SNS
         2. ANS
            1. preganglionic neuron
            2. postganglionic neuron
2. Subdivisions of ANS
   1. Sympathetic
      1. Overview
         1. flight-or-fight
      2. Anatomy
         1. site of origin - thoracolumbar division
         2. fibers
            1. preganglionic neurons
               1. white ramus
               2. sympathetic trunk
            2. synapse
            3. postganglionic neurons
               1. gray ramus
   2. Parasympathetic
      1. Overview
         1. resting & digesting
      2. Anatomy
         1. site of origin - craniaosacral division
            1. cranial nerves
            2. vagus nerve
            3. sacral nerves
         2. fibers
            1. terminal ganglia
3. Neurotransmitters
   1. Acetylcholine (ACh)
      1. cholinergic fibers
      2. release
      3. receptors
         1. nicotinic
         2. muscarinic
   2. Norepinephrine (NE)
      1. adrenergic fibers
      2. release
      3. receptors
         1. b blockers
         2. phenylephrine
4. Communication
5. Control
   1. Brain stem & spinal cord controls
   2. Hypothalamic control
   3. Cortical control