Sensory Receptors Case Study 2


Mock had been singing in the rock-n-roll band, the Sliding Rocks (they were originally called Mocks’ Rocks), and they were about to sign a deal with a major record label.  The Sliding Rocks had been on the road for about six months when Mock began to notice he was having problems hearing the high pitched tones on some songs.  Also, every morning after a show he would wake up experiencing a persistent clicking and ringing in his ears.  After moving about during the day the ringing sensation would slowly disappear.  However, it seemed to last longer each time it occurred.  Mock decided to see a hearing specialist.


General Questions:

1. Why is there electrical activity in the brain? Describe how nerve impulses are transmitted from neuron to neuron.


2. What is myelin? What is its function?  Explain.


3. Compare and contrast the structure and functions of the Central Nervous System and the Peripheral Nervous System. How are nerve cells ensheathed with myelin in the CNS? In the PNS?


Specific Questions

  1. Describe the structure of the inner ear and cochlea.

  2. Explain the mechanism of auditory transduction (converting sound waves into nerve impulses).

  3. Is there a cause-and-effect relationship or an organic pathology for Mocks’ hearing problems?  Explain.

  4. What is the significance of Mock having difficulty with the high pitched tones?

  5. What is your diagnosis? How serious is this condition?

  6. What treatments are recommended for this type of hearing problem?  What long-term consequences might Mock experience if his problems are not treated effectively?  Explain.