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Autonomic nervous system (Parasympathetic division (slow the heart rate,…

- - - - Salvation
      - lacrimiation
      - urination
      - defication
      - digestion
  - - - all fibers release ACh
  - - - CN 3, 7, 9, 10 brain stem nuclei, and spinal cord segments S2-S4
        
        3,7,AND 9
        
        serve head
        
        10 serves
        
        neck
        
        nerve plexuses that serve virtually every organ in the thoracic and abdominal cavities
        
        S2-S4
        
        Pelvic/splanich nerve
        
        urinary bladder,
        
        ureters
        
        reproductive organs
        
        distal large intestine,
- - - - inhibit nasal and salivary glands
      - effect muscles of upper eyelids
      - esophogus
      - thyroid gland
      - dialator muscles of irises
      - skin and blood vessels of head
  - - - All preganglionic fibers and post that serve sweat glands release ACh, all other post release NE
  - - - lateral horn of gray matter of spinal cord segments T1-L2
        
        passes through a white ramus
        
        enters a paravertebral ganglion
        
        pass through chain ganglion and synapse in collateral ganglion located anterior to the vertebral column
        
        synapse at higher/lower level with a postganglionic neuron by ascending/descending the sympathetic trunk to another trunk ganglion
        
        Synapse at same level with postganglionic neuron
- - - - Brain stem: regulates pupil size, heart rate, BP, airflow,salvation, etc.
        
        Spinal cord: reflexes (urination, deification, erection, and ejaculation)