1. The Nervous System

3. Nervous System Central Nervous System (CNS) – consists of the brain and spinal cord ONLY Peripheral Nervous System (PNS) – consists of all nervous tissue outside of the CNS. Includes nerves that communicate with muscles. Spinal nerves- 31 pairs (innervate muscles of body) Cranial nerves- 12 pairs (innervate muscles of face)

5. Cranium and Vertebral Column Cranium: contains the brain Vertebral column: contains the spinal cord Therefore, the cranium and vertebral column house the contents of the CNS.

7. Brain Frontal lobe: higher order thought, and initiation of movement Parietal lobe: somatosensation (pain, temperature, and touch sensation from the body) Temporal lobe: processes auditory, olfactory (smell), and gustatory (taste) information Occipital lobe: processes visual information Cerebellum: refines and coordinates movement

8. Spinal Cord

9. Dorsal View

11. Innervate entire body Innervate entire face

13. Sympathetic Nervous System

15. Parasympathetic Nervous System

17. Spinal Cord Injury SCI refers to traumatic injury of the spinal cord (motor vehicle accident, fractured vertebrae) Symptoms vary greatly depending on where the spinal cord is damaged 2 types of SCI:  Quadriplegia- loss of motor and sensory functions in all four limbs due to injury of cervical region of spinal cord.  Paraplegia- loss of motor and sensory functions of lower extremities (thighs and legs) only, due to damage of spinal cord below the cervical level.

18. Spinal Cord Injury Injury above this level results in quadriplegia Injury below this level results in paraplegia

19. Rick Hanson: Man in Motion Turn your books to page 98.