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Chapter 13: Peripheral Nervous System. Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright © 2007 Pearson Education, Inc., publishing.

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Presentation on theme: "Chapter 13: Peripheral Nervous System. Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright © 2007 Pearson Education, Inc., publishing."— Presentation transcript:

1 Chapter 13: Peripheral Nervous System

2 Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings. Figure 13.1: Place of the PNS in the structural organization of the nervous system, p CNS Sensory division Motor division Autonomic nervous system Sympathetic division Parasympathetic division PNS Somatic nervous system

3 Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings. Figure 13.6: Distribution of spinal nerves, p Cervical nerves C 1 – C 8 Thoracic nerves T 1 – T 12 Lumbar nerves L 1 – L 5 Sacral nerves S 1 – S 5 Coccygeal nerve C 0 Cervical plexus Intercostal nerves Cervical enlargement Lumbar enlargement Cauda equina Brachial plexus Lumbar plexus Sacral plexus

4 Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings. Figure 13.12a: Dermatomes, p (a) C2 C3 C4 C5 T1 T2 T3 T4 T5 C6 C8 C7 C6 T6 T7 T8 T9 T10 T11 T12 L1 S2 S3 L1 L2 L3 L4 L5 L2 L3 L4 L5 S1 C5 C6 C8 T2 C5 C6 S1

5 Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings. Figure 13.12b: Dermatomes, p (b) C2 C3 C4 C5 C6 C7 C8 C7 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 L1 L2 L3 S1 L5 S2 S1 S3 S2S1S2 S4 S5 L5 L4 L5 L4 C6 C5 L4 L3 L2 L1 L4

6 Marshall Hall 1790 – 1857 English physiologist who first advanced the theory of how the reflex arc worked.

7 Human Anatomy and Physiology, 7e by Elaine Marieb & Katja Hoehn Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings. Figure 13.14: The basic components of all human reflex arcs, p Stimulus Receptor Skin Sensory neuron Spinal cord (in cross section) Integration center Interneuron Motor neuron Effector


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