human anatomy chapter 14

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1

CNS consists of (2)

1. Spinal cord
2. Brain

2

CNS
1. Spinal cord
2. Brain

1. Integrates and processes information
2. Integrates and processes information

3

Spinal cord
1. length
2. passes through
3. extends from

1. 45 cm
2. foramen magnum
3. brain to L1

4

Spinal cord
1. Dorsal root
2. Ventral root

1. is sensory: axons extend from the soma within the dorsal root ganglion
2. is motor

5

Spinal cord
Spinal Nerves
1. Sensory
2. Motor

1. (afferent nerves): transmit impulses toward the spinal cord
2. (efferent nerves): transmit impulses away from the spinal cord

6
card image

1. dorsal root 2. dorsal root gangleion
3. central canal 4. ventral root
5. white matter 6. grey matter
7. posterior median sulcus
8. anterior median sulcus