Spinal cord & nerves

2. The Spinal Cord

3. cranial
nerves
- 12 pr
spinal
nerves-
31 pr

4. The Spinal Cord
ventral root
pia mater
dura
mater
arachnoid
grey matter
dorsal root
white matter
spinal
nerves

5. The Spinal Cord
spinal cord
spinal nerve
vertebra

6. Nerve Pathways into the
Spinal Cordsensory
pathway
motor
pathway

7. Neuron-To-Neuron Transmission
synapses

14. •T3-T12
•11 intercostal nerve
•1 subcostal nerve

17. 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

18. Spinal Reflex
Arc
patellar
ligament
stretch
receptor
motor
neuron
sensory
neuron
motor
neuron
interneuron