1. The Nervous System Chapter 7

2. Action Potential (nerve impulse)

3. Action Potential AT REST: Inside neuron  Negative Outside neuron  Positive

5. Sodium Potassium pump

6. Action Potential Stimulus disturbs plasma membrane Na + channels open, starting an action potential

7. Membrane is Depolarized Local region inside cell now has net positive charge and outside cell a net negative charge (This is opposite of when at rest!)

9. Repolarization Changes occur behind moving action potential to restore the resting membrane potential

11. Sodium-Potassium pump fully restores the resting membrane potential Uses ATP to restore the proper concentrations of Sodium and Potassium ions inside and outside the cell

14. Light Camera Action – Bean Activity

16. Sodium (Na) ions + Potassium (K) ions +

20. Multipolar Neurons

21. bipolar Neurons

22. unipolar Neurons

23. Regions of the Brain Cerebral hemispheres (cerebrum) Diencephalon Brain stem Cerebellum

24. Regions of the Brain

25. Cerebral hemispheres (cerebrum)

27. Surface Lobes of cerebrum Frontal lobe Parietal lobe Occipital lobe Temporal lobe

30. Frontal Lobe

32. Frontal Lobe (left)

33. Frontal Lobe (Right)

34. Parietal lobe

37. Occipital lobe

38. Temporal lobe (left)

39. Temporal lobe (right)