To Be Diagnosed with Attention-Deficit/hyperactivity Disorder,the Disorder Must Persist for at Least

question 70

Multiple Choice

To be diagnosed with attention-deficit/hyperactivity disorder,the disorder must persist for at least ________ months.

• A)6
• B)12
• C)24
• D)30

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Definitions:

Dendrite

The branch-like extensions of a neuron that receive signals from other neurons.

Motor Neurons

Nerve cells forming part of a pathway along which impulses pass from the brain or spinal cord to a muscle or gland.

Absolute Refractory Period

A time interval after an action potential during which another action potential cannot be initiated, regardless of the strength of the stimulus.

Millivolts

A unit of electric potential equal to one thousandth of a volt, commonly used in measuring the strength of electrical signals.