Autonomic Nervous System

Autonomic Nervous System

1. Sympathetic

   • "Fight or Flight"
     • Vasodilation
     • Perspiration
     • Digestion Halts
     • Elevated Heart Rate
     • Release of Epinephrine and Norepinephrine

2. Parasympathetic

   • "Rest and Digest"
     • Vasoconstriction
     • Heart Rate Decreases
     • Normal Digestion
     • Return to Homeostasis
     • Uses Acetylcholoine

3. Controls Involuntary Functions

   • Ex. Increasing or decreasing heart rate, perspiration, vasodilation or vasoconstriction

4. Encompasses Brain Stem, Spinal Cord and Peripheral Nerves