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5 Written questions

5 Matching questions

  1. effect of a neurotransmitter
  2. unipolar neurons
  3. two types of postsynaptic potentials
  4. disorders of nervous tissue
  5. RER and ribosomes
  1. a produce neurotransmitters (proteins)
  2. b on a postsynaptic membrane -
    -depends on the receptor
    -not on the neurotransmitter

    E.G. acetylcholine (ACh) -
    -usually promotes action potentials
    -but inhibits cardiac neuromuscular junctions
  3. c -found in sensory neurons of PNS
    -very long axons
    -fused dendrites and axon
    -cell body to one side
  4. d excitatory postsynaptic potential (EPSP)
    -graded depolarization of postsynaptic membrane

    inhibitory postsynaptic potential (IPSP)
    -graded hyperpolarization of postsynaptic membrane
  5. e multiple sclerosis -
    - disorder of oligodendrocytes
    -weakness, incoordination, visual impairment, speech disturbances
    -trouble walking up stairs or grasping objects
    -most common among women 20-40
    -autoimmune disorder or viral
    -no cure
    tumors -
    -gliomas
    -multiple neurofibromatosis

5 Multiple choice questions

  1. also, glial cells
    cells that support and protect neurons
  2. -brain
    -spinal cord
    -sensory receptors of sense organs
    -nerves connect nervous system with other systems
  3. -differing ionic concentrations between cytosol and extracellular fluid
    -selectively permeable membrane
    -transport mechanisms
  4. -unmyelinated
    -small diameter
    -slow speed
    -carry slower information
    -e.g. involuntary muscle, gland controls
  5. -common in the CNS
    -include all skeletal muscle motor neurons
    -very long axons
    -multiple dendrites, one axon

5 True/False questions

  1. events in the functioning of a cholinergic synapse

          

  2. temporal summation-multiple locations
    -many stimuli, arrive at multiple synapses

          

  3. neuroncells that send and receive signals

          

  4. initiating a change in the transmembrane potential-differing ionic concentrations between cytosol and extracellular fluid
    -selectively permeable membrane
    -transport mechanisms

          

  5. three types of sensory receptorsependymal cells
    astrocytes
    oligodendrocytes
    microglia