These are specialized cells in the nervous system that receive and send messages within that system.

TRUE/FALSE: Neurons can partially fire.

These are the sacs in the synaptic knob that hold and release neurotransmitters into the synaptic gap.

This is the space between neurons.

TRUE/FALSE: Neurotransmitters fit into receptor sites on the next cells, stimulating or inhibiting that cell's firing.

This neurotransmitter plays a role in memory formation.

This neurotransmitter plays a role in feelings of pleasure.

This neurotransmitter plays a role in sleep, arousal, appetite and well-being.

This consists of the brain and the spinal cord.

These neurons carry information from the senses to the central nervous system.

These neurons carry messages from the central nervous system to the muscles of the body.

This part of your peripheral nervous system controls the senses and the skeletal muscles we use voluntarily.

This part of your peripheral nervous system controls the muscles we canNOT voluntarily control (breathing, heart rate, etc.)

This part of our autonomic nervous system is our fight-or-flight system, reacting to stress.

This is the part of our autonomic system that restores and maintains normal day-to-day functioning of the organs.