Brief Episodes of Neurological Dysfunction Caused by Temporary Impairment of Blood

question 1

Multiple Choice

Brief episodes of neurological dysfunction caused by temporary impairment of blood flow to the brain that last from a few seconds to 24 hours are called:

• A)aneurysms
• B)agnosia
• C)reversible ischemic neurological deficits
• D)transient ischemic attacks

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Definitions:

Action Potentials

Electrical impulses that enable the transmission of information along the neurons.

Excitatory Input

Neural input that increases the likelihood of the firing of an action potential in receiving neurons, facilitating neuron-to-neuron communication.

Threshold

The minimum level of stimulus intensity required for a stimulus to be detected or for a response to occur.

Endorphins

Neurotransmitters produced in the brain that act as natural painkillers and also improve mood, often released in response to stress or exercise.