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18 Cards in this Set
- Front
- Back
- 3rd side (hint)
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CNS content |
Brain stem, brain, cerebellum, spinal cord |
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PNS contents |
All components outside brain and spinal cord |
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PNS divisions |
Somatic-voluntary actions Autonomic-automatic actions |
2 divisions |
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Autonomic divisions |
Parasympathetic-Relaxes body Sympathetic-fight or flight response |
2 parts |
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Nerve Cells |
Afferent-ascending (sensory) Efferent-descending (motor) Interneuron- connection nerve cells |
3 types |
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Neuroglia |
Non neural support cells |
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Astrocytes |
Maintain metabolic and vascular linking. Capillary and neural connection. |
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Oligodendrocytes |
Make myelin |
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Microglia |
Phagocytic, clean pathogens, repair injuries. |
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Neuron parts |
Nucleus, dendrites, axon, myelin sheath and nodes of ranvier, cell body (grey matter) |
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Synapse |
Dendrites and axon |
Where do they occur? |
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Message travel |
Axons send impulses through saltatory conduction. Neurotransmitters send info across synapses. |
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Acetylcholine |
Stimulate muscles, HR, some autonomic functions |
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Glutamate |
Heightened response, excitatory |
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GABA |
Relaxation |
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Dopamine |
Happy mood, motor activity (PD) |
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Norepinephrine |
Autonomic (brings to a relaxed state) |
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Epinephrine |
Stimulating neurotransmitter |
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