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16 Cards in this Set
- Front
- Back
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Afferent Neuron
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sends messages TO the CNS from the spinal cord
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Efferent Neuron
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FROM CNS to spinal cord/skeletal muscles
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Somatic Nervous System
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Contains the Cranial Nerves and the Spinal Nerves.
Sensory Receptors and Motor Neurons that activate Skeletal Muscles |
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Cranial Nerves
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Link the sensory receptors of the head to the brain and brain to certain muscles.
12 pairs. |
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Spinal Nerves
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Axons transmitting messages to/from the brain via spinal cord.
31 pairs. |
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Pain
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discomfort associated with tissue damage; cells getting hurt.
causes us to withdraw from source of pain and promotes recuperating behavior |
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Autonomic Nervous System
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Contains the nerves that regulate internal organ functioning.
AUTOMATIC |
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Sympathetic Nervous System
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Part of the autonomic that prepares us for FIGHT OR FLIGHT.
heart rate increases |
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Parasympathetic Nervous System
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Part of the autonomic that prepares us for rest; a calming period.
decreases heart rate |
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Sympathetic Axons
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Short Pre-Gang
Long Post-Gang |
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Parasympathetic Axons
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Long Pre-Gang
Short Post-Gang |
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Anterogade
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axonal breakdown from damage site to pre-synaptic terminals
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Retrograde
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from damage site to cell body
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Chromatolysis
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breakdown of a neuronal cell body after axonal damage
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Neural Regeneration
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regrowth and reestablishment of its connections
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Collateral Sprouting
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neighbors sprout new axonal endings to vacancies
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