1. Autonomic Nervous System

2. Divisions Sympathetic: “Saber tooth Tiger”
All processes speed up except for digestion
Parasympathetic: “Resting and Digesting”
All processes slow down, except digestion

3. ANS effectors Cardiac muscle Smooth muscle Glands
(known as visceral effectors)

4. Terms Ganglion (ganglia):junction boxes Switches
Multiple “wires” being redirected
Cholinergic fibers: secrete noepinephrine
Adrenergic fibers: secrete acetylcholine

5. Two pathways Sympathetic and parasympathetic Different:
Where they originate
Distance to ganglion(length of fibers)
Type of neurotransmitter
Same:
Effectors: muscle;cardiac and smooth, glands

6. Sympathetic Thoracolumbar
Originates; thoracic and upper lumbar segments
Short preganglionic fibers secrete acetylcholine
Long post ganglionic fibers secrete norepinephrine
Effectors; multiple at one time
Fight or flight, response to emotions

7. Parasympathetic Craniosacral
Originates brain stem and sacral segments of spinal cord
Long preganglion fibers secrete acetylcholine
Short post ganglion fibers secrete acetylocholine
Effectors; generally one
Normal everyday activities

8. Cranial Nerves
Only Old Octopi Travel To Argentina For Very Good Vegetables And Hamburgers
Only one orange tries to attack furry very girly vegetables and hippos
One Orange Orange Thought The Apple Faced Very Gross Veggies After Hiding
Only Odd Oranges Try To Arrest Fat Villains, Good Villains Always Hide
Only Old Orangutans Fight The Very Girly Aardvarks and The Vicious Hippos
On Organs, Oliver Twist Tapes A Funny Video Grouping Villains and Heroes

9. overall Automatic control Maintains or restores homeostasis
Different pathways
Different neurotransmitters
Sam effectors
Different control

10. Somatic Division 31 pairs spinal nerves/12 pairs cranial nerves
8/12/5/5,1 pair attached to coccygeal segment
Named by letter and number C1, T12
Branch to peripheral nerves in body
Sometimes braid together called a plexus

11. Functions Movement and sensation (sensory and motor neurons)
Spinal nerves follow pathways called dermatomes which can be assessed for functioning at the skin level.

12. Flow of CSF
Filtered out from blood capillaries known as choroid plexus
Two large spaces: lateral ventricles (R and L)
Flows down through aqueduct to third ventricle
Then to a fourth ventricle down to subarachnoid space near cerebellum
Then to spinal cord
Purpose: protection