Biology

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Author:
shortnin
ID:
21454
Filename:
Biology
Updated:
2010-06-16 00:52:48
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Neuron neurotransmitter dopamine norepinephrine GABA synapse glutamate monoamine oxidase vescicle
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Description:
The Chemicals at the Heart of the Brain
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  1. What is a neuron?
    A brain cell, or cell in the nervous system.
  2. What is a neurotransmitter?
    Chemical used by neurons to send signals to each other.
  3. What is a vesicle?
    A chamber in a neuron, which stores neurotransmitter molecules. Some neurotransmitters are synthesized inside vesicles, while others are synthesized elsewhere in the neuron, and piped into vesicles for storage.
  4. What is a synapse?
    The gap between the signal-transmitting region (an axon terminal) of one neuron, and the signal-receiving portion (receptors) of an adjacent neuron.
  5. What is monoamine oxidase?
    A family of enzymes (chemicals that break down other chemicals) that metabolize (destroy) neurotransmitters.
  6. What is dopamine?
    Dopamine is typically identified as the neurotransmitter most directly associated with pleasure. "Pleasure" includes emotions such as joy, and more physically-oriented sensations such as sensuality, libido, and sexual pleasure.
  7. Dopamine is a precursor to...
    Norepinephrine
  8. What is Gamma-Aminobutyric Acid (GABA)?
    A "message-altering"neurotransmitter. It is the major inhibitory neurotransmitter in the central nervous system, and regulates the transmission of signals in the brain.
  9. What is Glutamate?
    An excitatory neurotransmitter.
  10. What is the most common neurotransmitter?
    Glutamate
  11. What is Norepinephrine?
    A neurotransmitter most directly associated with energy, meaning the feeling of vigor, and capacity for physical labor. It is also associated with the ability to concentrate.
  12. What is Serotonin?
    The neurotransmitter most directly associated with calmness and general feelings of well-being.
  13. Problems involving this neurotransmitter may cause severe emotional disturbance, such as dramatic over-sensitivity to disappointment, extreme melancholia, and feelings of worthlessness.
    Serotonin
  14. DA is short for what neurotransmitter?
    Dopamine
  15. Early antipsychotic medications block ______ receptor sites
    Dopamine
  16. ____ is similar to epinephrine and norepinephrine.
    Dopamine
  17. This is associated with outgoing, pleasure seeking behavior.
    Dopamine
  18. Opposite of GABA
    Glutamate
  19. Think MSG
    Glutamate
  20. GABA stands for
    Gamma Aminobutyric Acid
  21. This inhibits a variety of behaviors and emotions, reduces anxiety
    GABA
  22. _____ is abbreviated NE
    Norepinephrine
  23. This neurotransmitter is a part of the endocrine system
    Norepoinephrine
  24. Beta blocker drugs block one type of _____ receptor sites
    Norepinephrine
  25. This neurotransmitter influences emergency response
    Norepinephrine
  26. Aka 5HT
    Serotonin
  27. Most antidepressant meds target this neurotransmitter
    Serotonin
  28. Low levels of this neurotransmitter are associated with impulsivity and tendency to overreact
    Serotonin

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