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5 Written questions

5 Matching questions

  1. threshold depolarization
  2. neglect syndrome
  3. criteria for NT
  4. catecholamines
  5. astrocytes
  1. a - injury caused
    - do not recognize body part as your own
    - do not dress it or wash it
  2. b - in CNS
    - makes bbb
    - "clean up system" of the brain
    - most numerous glie in the brain
    - regulates the chemical content of extracellular space
    - two types
    -> protoplasmic; found in grey matter
    -> fibrous; found in white matter
  3. c - needed to trigger the ap
    - opens K channels
  4. d 1. substance must be in presynaptic neuron
    2. released by Ca+ dependent depolarization
    3. here must be receptors on post-synaptic membrane
  5. e - DA, NE, Epi
    - tryosine -> l-dopine - > DA -> NE -> Epi
    - degraded by monosamineoxidase MAD
    - DA: pleasure seeking behavior; addiction; cocain, amphatamine
    - parkinson's disease: lack of DA in substrate nigria, treated w/l-dops; DA cannot cross bbb

5 Multiple choice questions

  1. - ANS
    - innervates all organs, glands, and smooth muscles
    - always active, under the influence of hypothalamus to maitian homeostasis
    - readies body for action, increase heart rate, bp, moves blood to muscles away from viscera
    - fear; neurons in hypothalamus and brain stem activate adrenal glands that secrete adrenalin aka epinephrine
  2. - has one gate, n
    - threshold depolarization opens K channels
    - n gate opens more slowly than m gate on Na channels
    - Na and K currents do not offset each other right away
  3. - a drug or compund that inhibits the action of the naturally occuring NT
  4. - your head blocks sound, so intensity is less in the ear away from the sound
    - your brain detects and computes this difference in intensity to localize sound direction
  5. - positive inside as predicted by Ena
    - h gate closes & blocks m gate

5 True/False questions

  1. interneurons- another name for an association neuron


  2. basal ganglia- carry out immune function
    - function as phagocytes to remove debris left by dead or degenerate neuron and glia


  3. peak of action potenial- depolarization
    - threshold
    - rising phase
    - overshoot
    - falling phase
    - undershoot
    - refractory period


  4. synaptotagmin- end in "-ine" or "-in"
    - made in axon terminus (synaptic vesicles)
    - DA, ACh, histanine


  5. electrically stimulate S1- "feel" sensation on the appropriate body part