An Ice Cube Placed on Your Hand Will Cause Some

question 234

Multiple Choice

An ice cube placed on your hand will cause some cells to fire action potentials more frequently and other cells to reduce the number fired.What explains the different responses?

• A) Thermoreceptors will detect the cold and slow down the rate of firing.
• B) A pressure-sensitive channel will increase its firing rate due to the weight of the ice cube.
• C) Some sensory cells will interpret the ice cube as painful and slow down their firing rate.
• D) There are both warm- and cold-sensitive receptors in the skin.
• E) Only the receptors that the ice cube actually touches will slow down their firing rate.

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