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5 Written questions

5 Matching questions

  1. deep cerebellar nuclei
  2. catecholamines
  3. ependymal cells
  4. inhibitory transmission
  5. metabotropic receptors
  1. a - 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
  2. b - synaptic transmission that causes transcient hyperpolarization of the post synaptic neuron
    - decreases the probability that the ppost synaptic neuron will fire an action potential
  3. c - open ion channels from cell interior
    - bind nt directly and cause an ion channel to open indirectly through second messengers
  4. d - line ventricles with in the brain
  5. e - main output nerons from cerebellum into spinal cord to innervate motor neurons in ventral horn
    - emoboliform
    - denate
    - globose
    - fastigial

5 Multiple choice questions

  1. - the change in membrane voltage caused by Ach
    - membrane must be depolarized to threshold to initiate an ap
    - each quantum causes 1mV deoplarization of membrane
    - EPSP or IPSP
  2. - narrow at the base near oval window
    - wide at apex
    - hair cells have cilia will depolorize to different extents in response to frewuency of sound wave
    - 100 times stiffer than the apex
    -moves up an down in response to waves of pressure impinging on the oval window and transmitted through to round window
    - hair cells connect to sensory neurons that live in spiral ganglion inside cochlea
  3. - follows an ap
    - cannot be fired even if there is a transient depolarization
    - due to Na channel inactivation, h gate slow to reopen
    - membrane is negative for h gate to reopen
    - ends when the K channel closes
    - subquent ap cannot be generated until membrane is repolarized
  4. 1. NT binds to meabrotrophic receptor
    2. metabrotrophic receptor splits g-protein into 2 halves (alpha and betagamma)
    3. to halves go different ways to affect different proteins, enymes, molecules, ect.
  5. - catecholaminergic
    - dopamine
    - serotonin
    - glutamate
    - aspartic acid

5 True/False questions

  1. parietal lobe- process conscious control of movement, behaviors & personality


  2. postcentral gyrus- line ventricles with in the brain


  3. location of synapsa involved in reflexes- synaptobrevin
    - syntaxin
    - SNAP-25
    - synaptotagmin


  4. 8intermediolateral cell column- lateral horns in the grey matter of the spinal cord
    - only at lower thoracic and upper lumbar levels
    - contain autonomic sypmathetic neuronal somas


  5. temporal summation1. AP comes to axon terminus & causes depolarization
    2. depolarization opens up Ca2+ channels
    3. Ca2+ binds to SNARE proteins (esp. synaptotgmin)
    4. vessicle membrane & axon membrane fuse together
    5. exocytosis of NT-bind receptors
    6. vessicle membrane is recycled
    -> via clathin mediated endocytosis and
    -> dynamin for hydrolysis of GTP (energy for recycling)