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5 Written questions

5 Matching questions

  1. GPCRs basic structure
  2. relative refractory period
  3. axon hillick
  4. glycine
  5. agonists
  1. a - single polypeptide with seven membrane spanning alpha-helices
  2. b - ends when K channel closes
    - a stimulus can excite an ap, but it must be stronger than the minimum stimulus required to elict an ap at rest
  3. c - a drug or compund that mimics the action of the naturally occuring NT
  4. d - beginning of axon
    - influenced sesnsitivity by shunting inhihibtion; inhibiting current flow from soma to axon hillock
  5. e - IPSPs
    - precursors serine (prefered) glucose (for all IPSP)
    - less common inhibitory NT
    - stychine: antagonist (blocks CL- channels) to gly receptor on Cl- channel
    -> effects: uncontrolled depolorization in the brain (no inhibition)

5 Multiple choice questions

  1. - "feel" sensation on the appropriate body part
  2. - understands
    - cannot speak clearly
    - motor defect (left frontal lobe)
  3. - large changes in Vm
    - net difference in electrical charges
    - rate of movement of ions across the memebrane
    - concenetration difference; equilbrium potential can be calculated
  4. - activation gate
    - opens quickly when membrane is depolarized
  5. - in scala media
    - hi K concentration
    - bathes stereocilia of hair cells
    - inward K+ flux leads to depolarization

5 True/False questions

  1. sound intensity- encoded by rate of firing and # of active neurons
    - the greater the amplitude wave, the greater distance along basilar membrane that moves - activate more hair cells and more SGNs


  2. capacitance- the ability of plasma membrane to store or seperate cherges of opposite signs


  3. amino acids- start with "g"
    - also aspartate
    - made in axon terminus (synaptic vesicles


  4. iontrophic receptor- open ion channels from cell interior
    - bind nt directly and cause an ion channel to open indirectly through second messengers


  5. temporal lobe- process conscious control of movement, behaviors & personality