Which of these statements accurately 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

The larger the receptor potential, the greater the depolarization of the receptor cell, which leads to a greater frequency of action potentials in the afferent neuron.

Answer: B
 Tonic receptors do not exhibit an "off-response" as they maintain a constant firing rate as long as the stimulus is present.

Answer: C
 Phasic receptors rapidly adapt to a stimulus and are important in situations where rapidly changing information about a stimulus is more valuable than sustained information.

Answer: D
 Receptor adaptation results from a decrease in the sensitivity of the receptor cell over time, not from nerve fatigue.

Which of These Statements Accurately Describes Receptors