An EEG, or Brain-Wave Recording

question 100

Multiple Choice

An EEG, or brain-wave recording:

• A) reflects the activities of only a few cells at a time.
• B) is recorded by inserting needle electrodes into the brain.
• C) is useful and very precise.
• D) shows different activity associated with sleep, relaxation, and mental concentration.

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Definitions:

Cerebral Cortex

A collection of several thin layers of cells covering the cerebrum; it is largely responsible for higher mental functions. Cortex is Latin for “bark” or “rind.”

Medulla

A structure in the brain stem responsible for certain automatic functions, such as breathing and heart rate.

Autonomic Nervous System

The subdivision of the peripheral nervous system that regulates the internal organs and glands.

Epinephrine

A hormone and neurotransmitter also known as adrenaline, involved in regulating visceral functions (e.g., heart rate) and the 'fight or flight' response.