SIU Neurology Resident Neuroscience Course

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Chapter 32. Smell and Taste: The Chemical Senses

  1. Olfactory sensory neurons are located in
    1. The olfactory epithelium
    2. The olfactory bulb
    3. The optic bulb
    4. The orbital frontal lobe
  2. Olfactory sensory neurons contain odorant receptors. In mammals there are approximately _________ genes for different odorant receptors.
    1. 10
    2. 100
    3. 1000
    4. 1000000
  3. Olfactory signal transduction involves
    1. G protein activation
    2. Adenylyl cyclase activation
    3. Cyclic nucleotide-gated channels
    4. All of the above
  4. Olfactory bulb input to brain is primarily via the thalamus
    1. True
    2. False
  5. Taste buds are innervated by the
    1. Seventh cranial nerve
    2. Ninth cranial nerve
    3. Chorda tympani
    4. All of the above
  6. Taste stimuli are transduced by sensory receptors located in ________
    1. Specialized epithelial cells
    2. Specialized neurons
This is an open-book test due 1/29/2002
A score of 80% or better is required. If your score is less, you are required to retake the test.

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