Hall: Guyton and Hall Textbook of Medical Physiology, 12th Edition
Chapter 46: Sensory Receptors, Neuronal Circuits for Processing Information
Test Bank
Choose the best answer.
1. Which figure below represents the response of the most rapidly adapting receptor to the
stimulus?
A. B. C.
response
stimulus
2. Which figure below represents the response of the most slowly adapting receptor to a
stimulus?
A. B. C.
response
stimulus
3. Which of the following represents a rapidly adapting receptor?
A. Muscle spindle receptor
B. Ruffini endings
C. Meissner’s corpuscle
D. Merkel discs
4. Which of the following statements best describes the receptor potential?
A. The receptor potential is always constant
B. The greater the intensity of the stimulus, the greater the change in receptor potential
C. Any change in the receptor potential will induce an action potential
D. Receptor excitation always involves depolarization of the receptor
5. Signal amplification can be achieved by which of the following neuronal pool schemes?
A. Divergence in the same tract
B. convergence from multiple sources
C. through lateral inhibition
D. through a reverberating circuit
6. Which of the following types of sensory nerve fibers has the fastest transmission rate for
action potentials?
A. Type C
B. Type A
C. Type A
D. Type A
In the various types of neuronal circuits, signal sharpening is achieved by which of the
following?
A. A diverging circuit
B. A converging circuit
C. A reverberating circuit
D. A circuit with lateral inhibition
8. Which of the following types of sensory nerve fibers has the slowest rate of transmission
nerve impulses?
A. Type C
B. Type A
C. Type A
D. Type A
9. Which of the following represents a slowly adapting receptor?
A. Pacinian corpuscle
B. Semicircular canal receptor
C. Meissner’s corpuscle
D. Merkel discs
10. Which of the following types of neuronal circuits is self-stimulating once activated?
A. Converging
Test Bank
46-3
B. Reverberating
C. Diverging
D. One that incorporates lateral inhibition
11. Which of the following statements concerning the mechanoreceptive receptor potential
are true?
A. An increase in stimulus energy results in an increase in receptor potential
B. When receptor potential rises above a certain threshold, action potentials will appear
in the neuron attached to the receptor
C. The number of action potentials generated in the neuron attached to the receptor is
proportional to the receptor potential
D. All of the above are correct
12. Which of the following is a characteristic of almost all sensory receptors?
A. The ability to perceive a mechanical force
B. The ability to be modulated by a change in temperature
C. The ability to be excited by the application of a chemical irritant
D. The ability to adapt to the stimulus