Which of the following is true of the response of a sensory neuron to the appropriate sensory stimulus?

Activity 1:  The resting membrane potential became less negative (-70 mV to – 40 mV) with increased extracellulkar K+ because K+ diffused out of the cell leaving  K+  inside the cell.   The following drawing may be helpful in evaluating Questions 1 and 2.

In Activity 2, which of the following was able to detect pressure?

In Activity 2, increasing the strength of the stimulus applied to the sensory receptor increased _______.

Increasing the voltage beyond the threshold stimulus voltage resulted in which of the following?

Resting membrane potential did not change with decreased extracellular Na+  because the membrane has Na+ leak channels than K+ leak channels and therefore changing Na+ concentrations has effect on membrane potential.

Activity 6: Multiple action potentials were generated in response to a 500 msec duration stimulus because the stimulus results in stimulation during the . The stimulus is which is required for an action potential to be generated during the phase of the action potential.

In Activity 2, which of the following responded to a chemical stimulus?  Use your data chart to answer.

In Activity 5, when the interval between the stimuli decreases, _______.

Pain-sensitive neurons conduct action potentials from the skin or teeth to sites in the brain involved in pain perception. To most effectively prevent the perception of pain a dentist would inject near the to the generation of action potentials that would send a signal to the brain.