Exploring the Nervous System Functions

What is the primary function of glial cells in the nervous system?

• Transmitting electrical signals

• Supporting and protecting neurons

• Producing neurotransmitters

• Regulating blood flow

Which substance is responsible for insulating axons and speeding up neural transmission?

• GABA

• Myelin

• Serotonin

• Dopamine

Which neurotransmitter is primarily inhibitory and helps to reduce neuronal excitability?

• Dopamine

• Serotonin

• GABA

• Acetylcholine

Which neurotransmitter is often associated with mood regulation and well-being?

• Dopamine

• Serotonin

• Endorphins

• Acetylcholine

Which neurotransmitter is involved in the reward and pleasure systems of the brain?

• GABA

• Serotonin

• Dopamine

• Acetylcholine

What are endorphins primarily known for?

• Enhancing memory

• Reducing pain and inducing euphoria

• Regulating sleep

• Controlling muscle contractions

Which neurotransmitter is crucial for muscle contraction and is also involved in memory?

• Dopamine

• Serotonin

• Acetylcholine

• GABA

What is the primary role of the central nervous system?

• Transmitting signals to muscles

• Processing and integrating information

• Regulating digestion

• Controlling reflex actions

Which of the following is a function of the spinal cord?

• Producing hormones

• Conducting sensory and motor information

• Regulating emotions

• Storing memories

Which system connects the central nervous system to the limbs and organs?

• Autonomic nervous system

• Peripheral nervous system

• Somatic nervous system

• Endocrine system