Ch4PQ

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Author:
k33m
ID:
182447
Filename:
Ch4PQ
Updated:
2012-11-08 03:05:41
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psych 260
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  1. ________ refers to the
    process by which drugs are absorbed, distributed within the body,
    metabolized, and then excreted from the body.
    Pharmacokinetics
  2. Which pair of drugs below are known to facilitate and inhibit (respectively) the release of ACh?
    black widow spider venom; botulinum toxin
  3. Which pair of drugs below are antagonists for the muscarinic and nicotinic (respectively) receptors?
    atropine; curare
  4. Match the drug with its correct action on GABA function.
    muscimol; direct agonist at the GABAA receptor
  5. Deprenyl may delay the progression of symptoms in Parkinson's disease because this drug
    inhibits monoamine oxidase-B.
  6. Injecting an animal with a
    dose of a chemical molecule that is a precursor for the synthesis of a
    synaptic neurotransmitter would be expected to
    increase the rate of synthesis and release of that neurotransmitter.
  7. The significance attached to glutamate, GABA, and glycine is that these are
    the most common neurotransmitters in the CNS.
  8. Which neurotransmitter acts to facilitate learning?
    acetylcholine
  9. Benzodiazepines and alcohol increase the effectiveness of GABA receptors.
    True
  10. The term "direct antagonist" is synonymous with "receptor blocker."
    True
  11. Botox injections smooth the face by
    blocking the activity of muscles in the face.
  12. A key difference between neuropeptides and monoamine neurotransmitters is that neuropeptides
  13. Which neurotransmitter acts to promote vigilance?
    norepinephrine
  14. Stimulation of a presynaptic autoreceptor
    reduces the release of the neurotransmitter from the axon terminal.
  15. The primary means by which the postsynaptic action of acetylcholine is terminated is via
    enzymatic destruction by acetylcholinesterase.
  16. A key stimulus for the release of adenosine from brain cells is
    an energy/oxygen deficit in cells.
  17. Which pair of transmitter substances is most involved in synaptic neurotransmission in brain?
    glutamate; GABA
  18. Which of the following
    neurochemical effects may contribute to the capacity of ecstasy (MDMA)
    to produce hallucinogenic effects in users?
    MDMA blocks serotonin reuptake and causes serotonin transporters to run in reverse.
  19. A(n) ________ is an innocuous substance that has no specific physiological effect.
    placebo
  20. Acetylcholine is inactivated by the enzyme acetylcholinesterase.
    True
  21. Which neurotransmitter activates voluntary movements and reinforces behavior?
  22. Learning is facilitated by ACh activity in the basal forebrain.
    True
  23. Glutamate is the major excitatory neurotransmitter in the brain.
    True
  24. Withdrawal from ________ can result in seizures due to the loss of inhibitory action on ________ receptors.
    NDMA
  25. A person who is admitted to a hospital emergency room with an opiate overdose is likely to be treated with
    naloxone
  26. Gamma-aminobutyric acid (GABA) is produced from
    glutamic acid.
  27. THC interferes with concentration and memory and can distort our sense of time.
  28. true
  29. ________ causes pupil dilation by blocking ________ receptors.
    Atropine; muscarinic
  30. Which of the following neuron systems that use ACh has been related to the control of REM sleep?
    dorsolateral pons ACh system
  31. Which of the following true of NMDA receptors?
    Activation of the NMDA receptor allows sodium and calcium ions into the nerve cell.
  32. Administration of a drug that blocks acetylcholinesterase in the brain would be expected to
    increase the amount of acetylcholine in the synapse.
  33. A drug that blocks or slows reuptake of a transmitter substance is termed an antagonist.
  34. False
  35. ________ is the synthesis precursor for dopamine.
    Tyrosine
  36. A drug that releases a transmitter substance is called an antagonist for the synapse.
    False
  37. Which of the following is true of GABA?
    The inhibitory effects of GABA act stabilize brain electrical activity.
  38. The final synthesis step for norepinephrine requires the presence of ______ .
    dopamine
  39. Two conditions associated with abnormal brain dopamine levels are
  40. Drugs that block or inhibit postsynaptic receptor effects are termed
    antagonists.
  41. The motor symptoms of Parkinson's disease
    can be treated using L-DOPA.
  42. Caffeine produces excitatory effects via
    blockade of adenosine receptors.
  43. The muscle weakness associated with myasthenia gravis reflects
    loss of ACh receptors on skeletal muscles.
  44. Black widow spider venom releases ACh from neurons.
    True
  45. Serotonin is synthesized from
    tryptophan
  46. Drugs that inactivate monoamine oxidase would be expected to
    increase dopamine levels within neurons.
  47. Imagine that you are
    suffering from severe pain and that you have the opportunity to request a
    drug to alleviate the pain. Which of the following drugs should you ask
    for?
    naloxone
  48. Administration of a drug that binds with a postsynaptic receptor, but does not open ion channels would be termed a(n)
    direct antagonist.
  49. Treatment with a drug that inhibits MAO may slow down the progression of Parkinson's disease because
    MAO may metabolize environmental chemicals into toxins that damage dopamine neurons.
  50. ________ refers to a pleasurable drug feeling that is "easy to bear."
    Euphoria
  51. ________ refers to the study of the effects of drugs on the nervous system and behavior.
    Psychopharmacology
  52. A drug that blocks a presynaptic autoreceptor
  53. The term "opioid" refers to ________, while the term "opiates" refers to ________.
    endogenous chemicals; exogenous drugs
  54. Parkinson's disease involves the degeneration of neurons within the ________ DA system.
    nigrostriatal
  55. The amino acid tyrosine is the precursor for the synthesis of norepinephrine.
    True
  56. Drugs that facilitate postsynaptic receptor effects are termed
    agonists
  57. Direct agonist is to direct antagonist as
    endogenous opioid is to naloxone.

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