The Reduction in the Number or Sensitivity of Receptors in Response

question 72

Multiple Choice

The reduction in the number or sensitivity of receptors in response to prolonged activation by a drug is termed:

• A) down regulation.
• B) metabolic tolerance.
• C) homeostasis.
• D) physical dependence.

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Definitions:

Mantle

The layer of the earth between the crust and the outer core, involved in tectonic movements and volcanic activity.

Spiny Skin

Characteristic of echinoderms, a group of marine invertebrates including sea stars and sea urchins, featuring a unique external skeleton covered in hard plates and spines.

Bilateral Symmetry

A body plan in which an organism can be divided into two identical halves along a single plane, typical of most animals, including humans.

Body Sides

Refers to the distinct regions or aspects of an organism's body, such as dorsal (back), ventral (belly), lateral (sides), anterior (front), and posterior (back).