Neurons
Nervous System
Sleep
Psychoactive Substances
Brain
100

The part of the neuron that sends an electrical signal to the terminals.

What is an axon?

100

Bundles of axons that make up the nervous system.

What are nerves?

100

This organ is cleaned by cerebrospinal fluid during sleep.

What is the brain?

100

This psychoactive substance is an adenosine antagonist and commonly found in plants like tea and coffee.

What is caffeine?

100

This lobe of the brain is known as "the seat of personality" and deals with higher level cognition and function.

What is the frontal lobe?

200

The "receivers" on a neuron.

What are dendrites?

200

The part of the nervous system that contains the brain and the spinal cord.

What is the Central Nervous System?

200

This stage of sleep is characterized by a transition from wakefulness to sleep.

What is Stage/Step 1 NREM sleep?

200

This psychoactive substance is a stimulant found in plants like tobacco that triggers the release of dopamine.

What is nicotine?

200

This lobe of the brain primary deals with things like visual processing.

What is the occipital lobe?

300

The name of the fatty, insulator around axons.

What is myelin?

300

This part of the nervous system contains everything outside of the brain and spinal cord.

What is the Peripheral Nervous System?

300

This stage of sleep is characterized by the slowing of brain waves, interspersed with spikes of activity.

What is Stage/Step 2 NREM sleep?

300

This substance potentiates GABA receptors and suppresses glutamate receptors to create an inhibitory effect on neurons.

What is ethyl alcohol or Ethanol?

300

This lobe of the brain processes sensory information, including touch.

What is the parietal lobe?

400

The process by which a neuron sends an electrical signal to its axon terminals.

What is an action potential?

400

These nerves carry signals away from the CNS to the PNS.

What are efferent nerves?

400

This stage of sleep is what is considered "deep sleep" and is what is required to feel rested.

What is Stage/Step 3 NREM sleep?

400

This class of drugs work by activating dopamine release and blocking pain receptors.

What are opioids?

400

This lobe of the brain houses a wide variety of functions, including memory creation and storage, understanding language, and hearing.

What is the temporal lobe?

500

The resting membrane voltage of a neuron.

What is -70mV?

500

These nerves carry signals from the PNS to the CNS.

What are afferent nerves?

500

This stage of sleep is characterized by a massive spike in brain activity and erratic movement of the eyes.

What is Rapid Eye Movement (REM) sleep?

500

These psychoactive substances profoundly alter consciousness, resulting in changes in mood, hallucinations, and serotonin and dopamine release.

What are psychedelics?

500

The three main parts of the brain.

What are the cerebrum, cerebellum, and brainstem?