Influences movement, learning, emotion, arousal, and pleasure.

Affects feelings of well being and happiness. Also hunger and sleep.

Helps control alertness and arousal. Associated with fight or flight.

A major inhibitory neurotransmitter - it calms firing nerves. GABA is important in producing sleep, reducing anxiety, thus increasing tranquility.

A major excitatory neurotransmitter; involved in learning and memory.

Pleasurable sensations, euphoria, relaxation and control of pain

Which is the following is represented by the letter B?

Which is represented by the letter E?

Which is represented by the letter G?

Is in charge of the neuron. It fuels the neuron’s activities and contains the nucleus, but not the axons or dendrites.

Carries the messages away from the cell body.

Covers the axon to protect it and help messages travel faster and easier.

Receive messages from other neurons and conducts them to the cell body.

The junction between the axon terminals of one neuron and the dendrites of another neuron.

Fibers at the end of the axon that transmits neurotransmitters to the dendrites of

another neuron.