Polysubstance Use Involving Illegal Drugs Occurs in About What Percentage

question 116

Multiple Choice

Polysubstance use involving illegal drugs occurs in about what percentage of U.S. illegal drug users?

• A) 20 percent
• B) 40 percent
• C) 60 percent
• D) as many as 90 percent

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Definitions:

Gate Theory of Pain

A theory suggesting that pain signals passing through the spinal cord can be blocked or moderated by gates in the spinal cord, influenced by other peripheral sensory signals and the brain.

Neurons

Specialized cells of the nervous system that transmit signals to different parts of the body, serving as the building blocks of the nervous system.

Electro-Magnetic Spectrum

The range of all types of electromagnetic radiation, from gamma rays, visible light, to radio waves.

Visual Sensations

Perceptions experienced through the sense of sight, including colors, patterns, and movements.