Term
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Definition
| Cells of the sense organs |
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Definition
| Influence muscles and stimulate glandular secretions |
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Term
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Definition
Specialized to conduct signals from one part of the body to another
neurons connect receptor cells to effector cells to integrate and coordinate activities |
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Term
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Definition
| Billions exist, mostly in brain |
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Term
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Definition
Interconnected
primary job- transmitting messages(nerve impulse)
some neurons produce neuroleptic esl which appear to affect parts of the brain associated with pain, pleasure and general emotions and mood.
essencially with Endorphines & Enkephalins- similar to structure of morphine |
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Term
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Definition
| afferent (sensory), efferent (motor), connecting (inter neuron) |
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Term
neuron STructure function-
cell body |
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Definition
| contains nucleus and other life sustaining systems |
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Term
neuron structure function-
myelin sheath |
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Definition
| fatty whitish substance wrapped around axom |
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Term
neuron structure& function-
axon |
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Definition
| the long extentions of a neuron that usually transmit impulses away from cell body. the nerve impulse is transmitted along the axon |
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Term
neuron structure/function-
end branches |
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Definition
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Term
neuron structure/function
dendrites&receptor sites |
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Definition
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Term
neuron structure/function
neurotransmitters |
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Definition
| small space between one neuron, emitted at the synapse from the sender, which carries the message to the adjacent neuron, STIMULATING or INHIBITING the neighboring neuron to fire...or not |
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Term
neuron structure/function
synapse |
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Definition
| small space between one neuron sender and another neuron receiver where neurons affect each other |
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Term
neuron s&funct
strength and nerve impulse |
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Definition
| primarily due to the axons rate of firing. the more intense stimulus the higher the firing rate |
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Term
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Definition
| anything that affects the amount and/or the effectiveness of neurotransmitters of the brain is likely to have a profound influence on THINKING, MOODS, and BEHAVIOR (e.g. schizophrenia, depression, other forms of abnormal behavior) |
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Term
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Definition
| deficiency of norepinephrine and serotonin |
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Term
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Definition
| over active/ excess dopamine |
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Term
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Definition
| reduces activity of serotonin |
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Definition
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