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9 Cards in this Set
- Front
- Back
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How do neurons communicate?
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Neurons communicate rapidly with one another, muscle cells, or glands using specialized intercellular junctions called synapses.
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What permits the action potential to move directly from cell to cell?
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Electrical synapses contain gap junctions that permit the action potential to move directly from cell to cell.
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What are neurotransmitters?
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Neurotransmitters (used by chemical synapses) diffuse rapidly through the synaptic cleft to communicate with another neuron, muscle cell, or gland.
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How does the pre-synaptic neuron communicate with the post-synaptic neuron at the chemical synapse?
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Neurotransmitters diffuse rapidly through the synaptic cleft to communicate with another neuron, muscle cell, or gland.
Some neurotransmitters stimulate the post-synaptic cell, while others inhibit the post-synaptic cell. |
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Low levels of what relate to depression?
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Low serotonin levels in the synaptic cleft relate to depression.
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What increases serotonin levels?
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Selective serotonin re-uptake inhibitors (SSRI) increase serotonin levels (decrease depression).
Prozac Paxil Zoloft |
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Which part of the brain is associated with addictions?
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Addictions hijack the brain's activity reward system by modifying chemical synapse activity.
The reward system response originates from the ventral tegmental area (VTA) of the brain. |
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What is cerebrospinal fluid?
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Cerebrospinal fluid provides the brain and spinal cord with nourishment, cushioning, pathogen resistance, hormone delivery, and waste product removal.
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What purpose do glia cells serve?
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Glia cells provide neurons with chemical and physical support.
blood barrier formation increase blood flow (neurotransmitter) synapse function regulate breathing Cilia promote circulation |
