Spinal Cord

1
Spinal Cord
Nerves
Ch 13
2
The Spinal Cord
3
Peripheral Nervous System
4
The Spinal Cord
5
The Spinal Cord
6
Nerve Pathways into the Spinal Cord
7
Neuron-To-Neuron Transmission
8
Spinal Nerves
9
Spinal Nerves
10
Cervical Plexus
11
Brachial Plexus
12
Lumbar Plexus
13
Sacral Plexus
14
Functional Divisions of the Peripheral Nervous
System

• Afferent Division
• Sensory (advances) neuron goes toward CNS
• Efferent Division
• Motor (exits) neuron- leaves CNS
• Somatic Nervous System
• Autonomic Nervous System

15
Spinal Reflex Arc