Dr. Ken Tangen gives a quick overview of the body's nervous systems, including central, peripheral, somatic, autonomic sympathetic, parasympathetic and enteric.

1. Today’s Topic
Nervous Systems

2. Major Divisions

3. Central Nervous System

4. Central Nervous System
brain
spine

5. Peripheral Nervous System
everything else

6. Peripheral Nervous System
everything else
not protected by bone
not protected by BBB

7. Peripheral
Somatic Nervous System
voluntary control of muscles

8. Peripheral
Somatic Nervous System
voluntary control of muscles
acetylcholine

9. Peripheral
Autonomic Nervous System
involuntary
control of heart, stomach & viscera

10. Peripheral
Autonomic Nervous System
Sensory neurons are
general visceral afferent fibers

11. Peripheral
Autonomic Nervous System
Motor neurons
require two neurons
preganglion neuron
target neuron

12. Peripheral
3 Divisions
Sympathetic
Parasympathetic
Enteric
Autonomic

13. Peripheral
3 Divisions
Sympathetic
speeds up
Autonomic

14. Peripheral
3 Divisions
Sympathetic
speeds up
Autonomic
spine to ganglion uses acetylcholine
ganglion to organ uses norepinephrine

15. Peripheral
3 Divisions
Sympathetic
speeds up
Autonomic
spine to ganglion uses acetylcholine
ganglion to organ uses norepinephrine
except sweat glands (use ACh)

16. Peripheral
3 Divisions
Para-Sympathetic
slows down
Autonomic

17. Peripheral
3 Divisions
Para-Sympathetic
slows down
Autonomic
medulla to ganglion is long neuron
ganglion to organ is short
both use ACh

18. Peripheral
3 Divisions
Enteric
digestion
Autonomic

19. Peripheral
3 Divisions
Enteric
digestion
Autonomic
meshwork of neurons
use 30+ neurotransmitters

20. Dr. Ken Tangen
www.BiologicalPsych.com