Which statement correctly describes receptors?
A)The larger the receptor potential, the greater the frequency of action potentials initiated in the afferent neuron.
B)Tonic receptors often exhibit an "off-response."
C) Phasic receptors are important in situations where maintained information about a stimulus is valuable.
D) Receptor adaptation results from nerve fatigue.

Question

Quizplus · Accepted Answer

Receptor potential is the initial depolarization of the receptor cell membrane. The greater the receptor potential, the greater the frequency of action potentials initiated in the afferent neuron transmitting the sensory information to the central nervous system.

B) This statement is not true. Tonic receptors have a sustained response and do not exhibit an "off-response."
C) This statement is also not true. Phasic receptors are important in situations where changes in stimulus intensity or duration are important, not when maintaining information about a stimulus. 
D) Receptor adaptation is the reduction of responsiveness of a receptor to a constant stimulus over time, not nerve fatigue.

Which Statement Correctly Describes Receptors