Although Most Psychoactive Substances Interact with Specific Substances in the Brain

question 105

Multiple Choice

Although most psychoactive substances interact with specific substances in the brain cells, the effects of ________ are much more complex because several different neurotransmitter systems are affected.

• A)opiates
• B)tranquilizers
• C)alcohol
• D)marijuana

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Definitions:

Auditory Receptors

Specialized cells located in the inner ear that convert sound waves into electrical signals, which are interpreted by the brain as sound.

Cochlea

A spiral-shaped cavity of the inner ear that is primarily responsible for converting sound vibrations into nerve impulses.

Amplitude

In physics, this term describes the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Frequency

The number of wave peaks per second. In sound, frequency governs the perceived pitch of the sound.