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13 Cards in this Set
- Front
- Back
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closed head injury--
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a sharp blow to the head resulting from a fall, an automobile or motorcycle accident, an assaunt, or other sudden trauma that does not actually puncture the brain.
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stroke (cerebrovascular accident)--
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a temporary loss of normal blood flow to the brain
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ischemia--
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a local blockage of bloos flow in the brain caused by a blood clot or other obstruction of an artery
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hemorrhage--
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the rupture of an artery
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edema--
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accumulation of fluid
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tissue plasminogen activator (tPA)--
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drug that breaks up blood clots and has a mixture of effects on damaged neurons
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penumbra--
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the region that surrounds the immediate damaged area
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diaschisis--
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decreased activity of surviving neurons after damage to other neurons
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collateral sprouts--
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branches that attach to vacant synapses
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denervation supersensitivity--
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heightened sensitivity to a neurotransmitter after the destruction of an incoming axon
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disuse supersensitivity--
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heightened sensitivity to a neurotransmitter after the destruction of an incoming axon
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phantom limb--
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continuing sensation of an amputated body part
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deafferented--
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the process of losing afferent (sensory) input
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