Central Nervous System
Peripheral Nervous System
Neurons & Synapses
Neurotransmitters & Brain Chemistry
100

This is the part of the brain responsible for higher-order functions like decision-making and reasoning.

What is the frontal lobe?

100

This branch of the PNS controls voluntary movements, such as moving your arm.

What is the somatic nervous system?

100

This part of the neuron receives signals from other cells.

What are dendrites?

100

This neurotransmitter is known as the "feel-good" chemical in the brain.

What is dopamine?

200

This fluid cushions the brain and spinal cord, providing protection and removing waste.

What is cerebrospinal fluid (CSF)?

200

The two branches of the autonomic nervous system are called this

What are the sympathetic and parasympathetic nervous systems?

200

This insulating layer allows signals to travel faster along the axon.

What is the myelin sheath?

200

Excessive screen time can affect this neurotransmitter, creating a feedback loop similar to addiction.

What is dopamine?

300

This brain structure is responsible for coordinating voluntary movements and maintaining balance.

What is the cerebellum?

300

The "fight or flight" response is triggered by this branch of the autonomic nervous system.

What is the sympathetic nervous system?

300

Neurotransmitters are released into this tiny gap between neurons.

What is the synapse?

300

This type of brain matter is responsible for transmitting signals.

What is white matter?

400

These are the two types of brain tissue, one consisting of neuron cell bodies and the other of myelinated axons.

What are gray matter and white matter?

400

The spinal cord is responsible for these kinds of movements, with the signals skipping the brain completely.

What are reflexes?

400

These types of neurons carry signals from sensory receptors to the brain and spinal cord.

What are sensory neurons?

400

Prolonged use of smartphones can negatively affect this cognitive skill, especially in adolescents.

What is attention span?

500

This structure is responsible for reflexes of the limbs.

What is the spinal cord?

500

The parasympathetic nervous system is sometimes nicknamed this because of its role in calming the body.

What is "rest and digest"?

500

The process by which a signal travels across a synapse from one neuron to another is called this.

What is synaptic transmission?

500

The scientific term for "getting rid of unnecessary neural connections."

What is synaptic pruning?