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5 Written questions

5 Matching questions

  1. synapsin
  2. end plates
  3. syntaxin and SNAP-25
  4. mini end plate potentials (MEPPS)
  5. dynamin
  1. a T-SNARE proteins embedded to the pre-synapatic membrane; attach to synaptic vesicles for vesicle fusion
  2. b make up EPPS and correspond to the release of just one or two vesicle. Small, happen spontaneously, and cannot trigger an AP.
  3. c a protein that causes the final pinching-off of the membrane that completes the production of coated vesicles in the synaptic vesicle cycle.
  4. d reversibly binds to synaptic vesicles and may cross link vesicle to actin filaments in the cytoskeleton to keep the vesicles tethered within the reserve pool.
  5. e neuromuscular junctions when synapses from the pre-synaptic axon elaborate and appear in a saucer-like shape on the muscle fiber

5 Multiple choice questions

  1. a V-SNARE protein that binds to the synaptic vesicle before exocytosis
  2. chemical agents acting as messengers between the communicating neurons. Released from vesicle when the is a large Ca++ influx into the cell. How many are released depends on how much Ca++ enters the terminal.
  3. Involved in priming synaptic vesicles for release. Work by regulating the assembly of SNARE proteins.
  4. an ATPase involved in priming synaptic vesicle for fusion
  5. partially blocks post synaptic ACh receptors when placed in the extracellular medium. Used to study EPPs and MEPPs.

5 True/False questions

  1. Electrical synapsesreversibly binds to synaptic vesicles and may cross link vesicle to actin filaments in the cytoskeleton to keep the vesicles tethered within the reserve pool.

          

  2. large dense-core vesiclesVesicles that contain small molecule neurotransmitters. These vesicles appear clear in electron micrographs. Made in the axon terminal by enzymes shipped down by slow axonal transport from the soma.

          

  3. acetylcholine (ACh)A neurotransmitter found primarily at neuromuscular junctions of the striated muscles and in the visceral motor system. Involved in muscle contraction and heart rate increases.

          

  4. CamKIIa kinase that phosphorylates synapsin and causes it to let go of the synaptic vesicles it is holding in the reserve pool

          

  5. synaptic vesicle cyclea V-SNARE protein that binds to the synaptic vesicle before exocytosis

          

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