Question

match each kind of drug to the effect it has on the brain.
influences moods in the limbic system
dissolves the fatty tissue in the brain
speeds up body functions but depresses brain activity
stimulant
steroid
inhalant

Explanation:

• Stimulant: Stimulants speed up body functions but depress brain activity. They increase alertness and energy levels in the body (speeding up functions like heart rate, metabolism etc.) while having a depressant - like effect on certain parts of the brain's inhibitory mechanisms.
• Steroid: Steroids dissolve in the fatty tissue in the brain. They are lipid - soluble (fat - soluble) compounds, and the brain has a significant amount of fatty tissue (myelin sheaths around neurons etc.), so steroids can easily penetrate and dissolve in this fatty environment.
• Inhalant: Inhalants influence moods in the limbic system. The limbic system is involved in emotions, mood, and memory. Inhalants can quickly reach the brain via the respiratory system and affect the neurotransmitter balance in the limbic system, thus influencing mood.

Answer:

1. Influences moods in the limbic system - Inhalant
2. Dissolves the fatty tissue in the brain - Steroid
3. Speeds up body functions but depresses brain activity - Stimulant