1. Neurotransmission Drugs
Agonists - mimics / blocks reuptake / excites
Antagonists - prevents release / blocks / inhibits

2. Types of Neurons Khan;start @ 4:50
Efferent (Motor) Neurons
info to body parts for movement
Interneurons
info within central nervous system
Afferent (Sensory) Neurons
info to CNS from body parts
Remember… S.A.M.E.

3. A Neural Chain 3

4. A Neural Chain 4

5. A Neural Chain 5

6. A Neural Chain 6

7. The Nervous System crash course Khan

8. Central Nervous System
brain and spinal cord
CNS

9. Peripheral Nervous System
all nerves that are not encased in bone
everything but the brain and spinal cord
divided into two categories
somatic
autonomic

10. Somatic Nervous System
controls voluntary muscle movement
uses motor (efferent) neurons

11. Autonomic Nervous System
controls the automatic functions of the body
divided into two categories
sympathetic
parasympathetic

12. Sympathetic Nervous System
“Fight or Flight” response
automatically accelerates heart rate, breathing, dilates pupils, slows down digestion

13. Parasympathetic Nervous System
automatically calms the body down after a stressful event
heart rate and breathing slow down, pupils constrict, and digestion speeds up
think, “parachute”

14. Reflexes
normally, afferent neurons  spine  brain & brain sends orders for movement  efferent neurons
some reactions occur when sensory neurons reach just the spinal cord & spinal cord sends orders

15. brain rap