Half-Life Refers To

question 19

Multiple Choice

Half-life refers to:

• A) The average time required to eliminate one half of the drug's concentration.
• B) The amount of time needed to eliminate the entire drug from the body.
• C) The amount of time needed to notice the drug's effectiveness.
• D) None of these

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Definitions:

Endocrine System

A network of glands and organs that secrete hormones directly into the bloodstream to regulate bodily functions and processes.

Somatic System

A part of the peripheral nervous system that handles voluntary control of body movements via skeletal muscles.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions and drives, such as fear, pleasure, and anger.

Autonomic System

A part of the peripheral nervous system that controls bodily functions not consciously directed, such as breathing, the heartbeat, and digestive processes.