Term
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Definition
network of neurons
regulates muscle contraction and secretions
gathers info from environment |
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Term
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Definition
| stimuli --> sensory neurons --> interneurons in spinal cord --> motor neurons --> effector cells |
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Term
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Definition
| high sensory & motor functions |
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Term
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Definition
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Term
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Definition
| homeostatic and endocrine regulations |
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Term
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Definition
| visual and auditory integration |
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Term
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Definition
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Term
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Definition
| autonomic and respiratory control |
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Term
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Definition
| bundle of myelinated axons in the CNS |
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Term
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Definition
| a bundle of neuron axons in the PNS |
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Term
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Definition
| a grouping of nerve cells in the PNS |
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Term
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Definition
shwann/oligodendricites - form mylin sheath
astrocytes - metabolic support cells
microglial cells- immune function |
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Term
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Definition
electrical signal generated by excitable cells due to voltage dependent changes in membrane permeabilities
triggered by depolarization |
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Term
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Definition
| contact between two neurons and their effector cells |
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Term
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Definition
predominant type
fast (ionotropic) or slow (metabotropic)
excitory or inhibitory |
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Term
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Definition
present in synaptic terminal
released upon stimulation
may elicit a variety of synaptic responses
active for only a short period of time |
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Term
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Definition
directly alters membrane permeability
fast
excitory or inhibitory
ligand gated channels
no secondary messenger |
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Term
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Definition
produce a metabolic change in post synaptic cell
slow
excitory, inhibitory, or other effects
g couple protein receptors
secondary messenger |
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Term
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Definition
ionotropic
on dendrites and cell body |
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Term
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Definition
action potential generation
NT release
permeability dependent on membrane potential |
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Term
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Definition
in ionotropic
inhibitory or excitory
change in post synaptic neurons resting membrane potential |
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