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5 Written questions

5 Matching questions

  1. frontal lobe
  2. sacal media
  3. length constant
  4. myelin
  5. temporal lobe
  1. a - facilitates current flow of ap
    - has high capacitance so the membrane stores charges and ions do not move acress the membrane
  2. b - involved in processing hearing and language
  3. c - process conscious control of movement, behaviors & personality
  4. d - distance that a psp can spread along the membrane
    - distance along a neurite at which constant applied voltage will decay to 37% of its original value
    - the greater the membrane resistance (ie. no channels) the longer the psp travels
  5. e - bounded by basilar & ressner's membranes
    - has endolymph fluid

5 Multiple choice questions

  1. - a pressure wave reaches the oval window and pushes it inward and increases pressure above the basilar membrane
    - basilar membrane moves downward as pressure is released by bulging out of the round window at base of cochlea
    - 3 components
    1. scala vestibuli
    2. sale tympani
    - scala media
  2. - summing of all IPSP and EPSP to determine if threshold has been met for AP generation
    - based on temporal & spatial summation
  3. - precursor: acetyl CoA, chloine
    - made by cholineacetyltransferase ChAT
    - degraded by acetylchlolinsterase AChE
    - nicotinic receptor (NAChR) - muscle contraction
    - mesacrarisic receptor - slow down heart rate
  4. - carriers information about sensations from the face
  5. - g protein couples nt with downstream enzyme activation
    - bind guanosine di & triphosphate

5 True/False questions

  1. dsyfunction of which nucleus is associated with parkinson's disease?- substrantia nigra


  2. inhibitory transmission- length constant
    - distance that the constant applied voltage will decay to 37 % of final value
    - determined by resistance; igh membrane resistance & low internal reistance -> high constant8


  3. sympathetic system- ANS
    - innervate all organs except liver, skin & arteries
    - always active to maintain homeostasis
    - causes relaxation & ihibits activity of innverated end organs
    - except increases digestion
    - bp, hr decrease, blood flow directed from muscle to viscera


  4. temporal summation- time constant
    - time it takes for a constant applied voltage to build up to 63 % of final value


  5. acetylcholine in muscle contraction- used to calculate membrane potential
    - assumes that electrical field of the membrane potential is equal across the span of the membrane