The Peripheral Nervous System and Reflex Activity Lecture 13
Figure 13.1
Figure 13.2
Figure 13.3
Figure 13.4
Figure 13.4a, b
Figure 13.4c, d
Figure 13.5
Figure 13.5a
Figure 13.5b
Figure 13.6
Figure 13.7
Figure 13.7a
Figure 13.7b
Figure 13.8
Figure 13.9
Figure 13.9a
Figure 13.9b
Figure 13.9c
Figure 13.10
Figure 13.11
Figure 13.12
Figure 13.12a
Figure 13.12b
Figure 13.13
Figure 13.14
Figure 13.15
Figure 13.16
Figure 13.17
Figure 13.18
Figure 13.19
Table 13.1.1
Table 13.1.1
Table 13.2.1
Table 13.2.2
Table 13.2.3
Table 13.2.4
Table 13.2.5
Table 13.26
Table 13.2.7
Table 13.2.8
Table 13.29
Table 13.2.11
Table 13.2.12
Table 13.2.13
Table 13.2.14
Table 13.2.15
13-T03CervicalPlex_TAB Table 13.3
Table 13.4
Table 13.5
Table 13.6
Figure UN 13.1
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Ch 13 the peripheral nervous system and nervous activity

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  • Peripheral Nervous System = PNS parts of the nervous system OUTSIDE of the CNS 1) cranial nerves (12 pairs) 2) spinal nerves (31 pairs) 3) sensory receptors PNS  sensory division (afferent division)  sends info from sensory receptors to the CNS  motor division (efferent division)  sends info from CNS to the effector structures such as skeletal muscle and organs Hence the motor division is divided into the autonomic or somatic nervous system AUTONOMIC  involuntary division that conducts impulses to the organs in the body SOMATIC  voluntary division that conducts impulses to the skeletal muscle Autonomic nervous system is further divided into 2 divisions  parasympathetic nervous system and sympathetic nervous system Parasympathetic  involved in non emergency functions (relaxation) Sympathetic  involved in emergency functions. Hence it is termed the fight-or-flight response MAJOR DIFFERENCE  sympathetic uses a lot of energy whereas parasympathetic conserves energy
  • Ch 13 the peripheral nervous system and nervous activity

    1. 1. The Peripheral Nervous System and Reflex Activity Lecture 13
    2. 2. Figure 13.1
    3. 3. Figure 13.2
    4. 4. Figure 13.3
    5. 5. Figure 13.4
    6. 6. Figure 13.4a, b
    7. 7. Figure 13.4c, d
    8. 8. Figure 13.5
    9. 9. Figure 13.5a
    10. 10. Figure 13.5b
    11. 11. Figure 13.6
    12. 12. Figure 13.7
    13. 13. Figure 13.7a
    14. 14. Figure 13.7b
    15. 15. Figure 13.8
    16. 16. Figure 13.9
    17. 17. Figure 13.9a
    18. 18. Figure 13.9b
    19. 19. Figure 13.9c
    20. 20. Figure 13.10
    21. 21. Figure 13.11
    22. 22. Figure 13.12
    23. 23. Figure 13.12a
    24. 24. Figure 13.12b
    25. 25. Figure 13.13
    26. 26. Figure 13.14
    27. 27. Figure 13.15
    28. 28. Figure 13.16
    29. 29. Figure 13.17
    30. 30. Figure 13.18
    31. 31. Figure 13.19
    32. 32. Table 13.1.1
    33. 33. Table 13.1.1
    34. 34. Table 13.2.1
    35. 35. Table 13.2.2
    36. 36. Table 13.2.3
    37. 37. Table 13.2.4
    38. 38. Table 13.2.5
    39. 39. Table 13.26
    40. 40. Table 13.2.7
    41. 41. Table 13.2.8
    42. 42. Table 13.29
    43. 43. Table 13.2.11
    44. 44. Table 13.2.12
    45. 45. Table 13.2.13
    46. 46. Table 13.2.14
    47. 47. Table 13.2.15
    48. 48. 13-T03CervicalPlex_TAB Table 13.3
    49. 49. Table 13.4
    50. 50. Table 13.5
    51. 51. Table 13.6
    52. 52. Figure UN 13.1

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