Autonomic Nervous System

1. Sympathetic

1.1. Fight or Flight

1.1.1. Increase heart rate

1.1.2. Dilate Pupils

1.2. Thoracolumbar Division

1.2.1. T1-L2

1.3. Ganglionic Fibers

1.3.1. Short preganglionic fibers

1.3.2. Long postganglionic fibers

1.4. Acetylcholine

1.4.1. Secreted by preganglionic fibers

1.5. Norepinephrine

1.5.1. Secreted by postgagnlionic fibers

2. Parasympathetic

2.1. Rest and Digest

2.1.1. Decrease heart rate

2.1.2. Constrict pupils

2.2. Craniosacral Division

2.2.1. S 2-4

2.2.2. Midbrain

2.2.3. Pons

2.2.4. Medulla Oblongata

2.3. Ganglionic Fibers

2.3.1. Long preganglionic fibers

2.3.2. Short postganglionic fibers

2.4. Acetylcholine

2.4.1. Released from pre and postganglionic fibers