Neuroscience Quiz

What is the role of neurons in the central nervous system?

• They store energy

• They transmit messages

• They produce hormones

• They digest food

What is the role of sensory neurons?

• Transmit signals to muscles

• Relay information between neurons

• Take input from sensory receptors and pass it to the brain and spinal cord

• Produce myelin

What is a reflex arc?

• A voluntary response to a stimulus

• An involuntary response processed by the brain

• An involuntary response processed by the spinal cord

• A learned response to a repeated stimulus

What factors affect the speed of a neural impulse?

• Temperature and humidity

• Size of the nerve fiber and type of signal

• Age and diet

• Time of day and location

What is the role of neurotransmitters in the synapse?

• They are absorbed by the axon.

• They are picked up by receptors in the dendrites.

• They dissolve in the synapse.

• They create new neurons.

What is the primary function of neurotransmitters?

• To carry messages across neurons.

• To create new neurons.

• To destroy old neurons.

• To absorb electrical impulses.

What is the effect of SNRIs on neurotransmitters?

• Increase reuptake

• Reduce reuptake

• Block release

• Enhance release

Which of the following is NOT a symptom of withdrawal?

• Cravings

• Tremors

• Increased energy

• Anxiety

What neurotransmitter's concentration is increased by amphetamines in brain synapses?

• Serotonin

• Dopamine

• Norepinephrine

• GABA

cells that are specialized to transmit messages

• Autonomic
• Neuroglia
• Neurons
• Somatic