Which of the Following Is an Explanation for the Psychological

question 103

Multiple Choice

Which of the following is an explanation for the psychological component in the experience of pain?

• A) The central control mechanism has an effect through ascending nerve fibres in the spinal cord.
• B) The central control mechanism has an effect through descending nerve fibres in the spinal cord.
• C) The peripheral control mechanism has an effect through both ascending and descending nerve fibres in the spinal cord.
• D) The central control mechanism has an effect through undefined neural mechanisms.

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Definitions:

Soils

The top layer of the earth's surface, composed of mineral particles, organic matter, water, and air, and capable of supporting plant life.

Grasslands

Large, open areas where the dominant vegetation consists of grasses, often found in regions with moderate to semi-arid climates.

Biological Magnification

The increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain.

Food Chain

A series of organisms each dependent on the next as a source of food, representing the flow of energy and nutrients in an ecosystem.