Afferent Division

Efferent Division

Somatic Nervous System

Autonomic Nervous System

Sensory Neurons

Somatic Sensory Neurons

Visceral Sensory Neurons

Sensory Receptors

Motor Neurons

Somatic Motor Neurons

Visceral Motor Neurons

Anaxonic Neuron

Bipolar Neuron

Unipolar Neuron
(pseudounipolar neuron)

Multipolar Neurons

Ependymal Cell
(Central Nervous System)

Astrocyte
(Central Nervous System)

Ogliodendrocytes (Central Nervous System)

Microglia
(Central Nervous System)

Satellite Cells (Peripheral Nervous System)

Schwann Cells (Peripheral Nervous System)

Graded Potential

Action potential

Synapse

Leak Channels

Voltage Gated Channels

Refractory Period

EPSP

IPSP

temporal summation

spatial summation

CNS

spinal cord

posterior - sensory
PS

central canal of spinal cord (ependymal canal)

dorsal root ganglia

dorsal root

ventral roots

gray matter

white matter - tracts carry info into and out of CNS

spinal nerves

dermatone

spinal reflexes

reflex arc

stretch reflex
monosynaptic

golgi tendon reflex

withdrawal reflex
ipsilateral (same side)
polysynaptic

polysynaptic reflexes

receptors

tonic recptors

phasic receptors

somatosensory pathways

spinothalamic pathway
touch, pain

posterior column pathway
touch, vibrations, proprioception

spinocerebellar pathway
proprioception

somatic nervous system - corticospinal pathway