Neurotransmitters and Neurons

Enables muscle action, learning, and memory.

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?