Nervous System and Neuron Worksheet

The central nervous system is mainly made of...

• Brain and spinal cord

• Heart and blood vessels

• Nerves and muscles

• Skin and glands

Dendrites are important because they…

• Send messages to other cells

• Receive signals from other neurons

• Insulate the axon

• Break down neurotransmitters

Which structure sends messages out of the neuron?

• Dendrites

• Axon

• Soma

• Synapse

Inside a neuron, the message is…

• Electrical

• Chemical

• Magnetic

• Emotional

When neurotransmitters get sucked back into the sender neuron, that’s called…

• Recycle bin

• Reuptake

• Refueling

• Restart

Which neurotransmitter makes you feel rewarded when you eat chocolate or get a like on Instagram?

• Dopamine

• Serotonin

• Acetylcholine

• GABA

Low levels of serotonin are linked to…

• Depression

• Hunger

• High energy

• Creativity