Neurotransmitters

• Define neurotransmitters.

  Neurotransmitters often are the body's natural chemical messengers that can alter the activity of neighbouring neurons.
• What is the function of an acetylcholine?

  Excites muscle, decreases HR, relay signals between autonomic nervous system and brain.
• What is the function of an norepinephrine?

  Norepinephrine: regulates abdominal organs, brain functions.
• What is the function of an dopamine?

  Dopamine: motor functions
• What is the function of an serotonin?

  Serotonin: mental functions, circadian rhythms, wakefulness.
• What is the function of an Gamma-aminobutyric acid?

  Gamma-aminobutyric acid: inhibits various neurons.
• What is the function of an glycine?

  Glycine: inhibits various neurons.
• *Describe the process that occurs at the synapse*

  A neuron fires, or sends a message, by releasing neurotransmitters. The message is converted into an electrical impulse that travels through the neuron. The message is transmitted to the next neuron by other neurotransmitters until the message arrives at its destination.
• Fill in the blanks of the parts of the synapse

  A) Neurotransmitters in vesicle

  B) Neurotransmitters in the synapse

  C) Neurotransmitter at a receptor

  D) Impulse triggered in receiving neuron