Understanding Drugs and Their Effects

What is the general definition of a drug?

• A substance that only produces physical effects.

• A substance that only produces psychological effects.

• A substance taken that produces physical and/or psychological side effects.

• Any substance that is always illegal.

Which type of drug is known for increasing alertness, heart rate, and reaction speed?

• Depressants

• Stimulants

• Narcotics

• Beta blockers

Caffeine, commonly found in coffee and energy drinks, belongs to which category of drugs?

• Depressants

• Stimulants

• Narcotics

• Beta blockers

A severe health risk associated with stimulant use, such as cocaine, is a dramatically increased risk of:

• Muscle sprains.

• Heart attack.

• Improved lung function.

• Stronger bones.

What type of drug is alcohol classified as?

• A stimulant

• A hallucinogen

• A depressant

• An anabolic steroid

Which of the following is a common effect of depressant drugs like alcohol?

• Increased inhibitions.

• Faster reaction times.

• Slower reaction times and decreased inhibitions.

• Heightened alertness.

The nervous system is generally divided into two main parts. What are they?

• The muscular system and the skeletal system.

• The central nervous system and the peripheral nervous system.

• The circulatory system and the respiratory system.

• The digestive system and the endocrine system.

What are neurons primarily responsible for in the nervous system?

• Storing fat and energy.

• Pumping blood throughout the body.

• Transmitting electrical impulses.

• Digesting food.

What is the small gap between two neurons where impulses are transmitted called?

• A nucleus

• An axon

• A synapse

• A dendrite

How do depressants typically affect the transmission of impulses across a synapse?

• They speed it up significantly.

• They have no effect on it.

• They slow it down.

• They cause repeated impulses.