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Author Question: The force that causes the tips of the hair cells to bend in response to movement of the basilar ... (Read 137 times)

jeatrice

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on: Jun 22, 2018
The force that causes the tips of the hair cells to bend in response to movement of the basilar membrane arises from the
 
  a. linkage between the hair cells and the tectorial membrane.
  b. mechanical linkage between the hair cells and the tympanic membrane.
  c. movement of the round window.
  d. movement of the hair cells through the tectorial membrane.
  e. movement of fluid past the tips of the hair cells.

Question 2

Whether ion channels open or close within the hair cell cilia
 
  a. is a function of the voltage of the cilia membrane.
  b. reflect the action of a second messenger within the cilia.
  c. is controlled by ionotropic membrane receptors.
  d. reflects tension exerted by the tip links on the insertional plaques.
  e. involves the breakdown of cyclic AMP.


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sylvia

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Reply #1 on: Jun 22, 2018
Answer to Question 1

Answer: e. movement of fluid past the tips of the hair cells.

Answer to Question 2

Answer: d. reflects tension exerted by the tip links on the insertional plaques.


jeatrice

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Reply #2 on: Jun 22, 2018
Thank you!


sylvia

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Reply #3 on: Jun 22, 2018
Happy to help


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