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Medical Terminology- Neurology

Mr. Sherden's class
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Sensation
collects information about internal and external environment(sensory)
Interpretation
processing information and making decisions
Response
directing muscles and glands to act(motor)
Central Nervous System
brain and spinal cord
Peripheral Nervous System
cranial and spinal nerves
Somatic Nervous System
conscious control/awareness
somat/o
body
Neurons
conduct electricity(excitable)
Glial Cells
not excitable. Support, protect or insulate neurons
neur/o
nerve
gli/o
glue
Neuron Parts
dendrites
cell body
axon
dendr/o
tree
Dendrites
receive action potentials(electric impulses)
Cell Body
generates action potentials
Axon
carries action potential away from cell body
Action Potential
electrical impulses
Synapses
-junctions between consecutive neurons
-axon terminals contain vesicles of neurotransmitter(specialized chemicals)
-neurotransmitter binds to receptor sites on dendrite(post-synaptic membrane), opening sodium gates and causing depolarization of neuron
Autonomic Nervous System
not under conscious control or awareness