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Questions and Answers
Which figure shown represents the response of the most rapidly adapting receptor to the stimulus?
Which figure shown represents the response of the most rapidly adapting receptor to the stimulus?
Which figure shown represents the response of the most slowly adapting receptor to a stimulus?
Which figure shown represents the response of the most slowly adapting receptor to a stimulus?
Which of the following best describes a rapidly adapting receptor?
Which of the following best describes a rapidly adapting receptor?
Which of the following statements best describes the receptor potential?
Which of the following statements best describes the receptor potential?
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Signal amplification can be achieved by which of the following neuronal pools?
Signal amplification can be achieved by which of the following neuronal pools?
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Which of the following types of sensory nerve fibers has the fastest transmission rate for action potentials?
Which of the following types of sensory nerve fibers has the fastest transmission rate for action potentials?
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Signal sharpening is best achieved by which of the following types of neuronal circuits?
Signal sharpening is best achieved by which of the following types of neuronal circuits?
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Which of the following types of sensory nerve fibers has the slowest rate of nerve impulse transmission?
Which of the following types of sensory nerve fibers has the slowest rate of nerve impulse transmission?
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Which of the following represents a slowly adapting receptor?
Which of the following represents a slowly adapting receptor?
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Which of the following types of neuronal circuits is self-stimulating once activated?
Which of the following types of neuronal circuits is self-stimulating once activated?
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Which of the following best describes a characteristic of almost all sensory receptors?
Which of the following best describes a characteristic of almost all sensory receptors?
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A progressive rise in receptor potential (becomes less negative) of a typical mechanoreceptor is most likely to have which of the following effects on the frequency of action potentials in the axon from that mechanoreceptor?
A progressive rise in receptor potential (becomes less negative) of a typical mechanoreceptor is most likely to have which of the following effects on the frequency of action potentials in the axon from that mechanoreceptor?
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Which of the following sensory receptors is most likely to have the highest rate of adaptation?
Which of the following sensory receptors is most likely to have the highest rate of adaptation?
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A mechanoreceptor has a resting membrane potential of –65 millivolts, and a threshold potential of –45 millivolts. A mechanical force is applied gradually to this receptor, which causes the receptor potential to increase gradually to a value of –30 millivolts. The increase in receptor potential is most likely caused by which of the following?
A mechanoreceptor has a resting membrane potential of –65 millivolts, and a threshold potential of –45 millivolts. A mechanical force is applied gradually to this receptor, which causes the receptor potential to increase gradually to a value of –30 millivolts. The increase in receptor potential is most likely caused by which of the following?
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A mechanoreceptor has a resting membrane potential of –65 millivolts, and a threshold potential of –45 millivolts. A mechanical force is applied gradually to this receptor, which causes the receptor potential to increase gradually to a value of –30 millivolts. The highest frequency of action potentials generated by the mechanoreceptor is most likely to occur at which of the following receptor potentials (in millivolts)?
A mechanoreceptor has a resting membrane potential of –65 millivolts, and a threshold potential of –45 millivolts. A mechanical force is applied gradually to this receptor, which causes the receptor potential to increase gradually to a value of –30 millivolts. The highest frequency of action potentials generated by the mechanoreceptor is most likely to occur at which of the following receptor potentials (in millivolts)?
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Which of the following best describes the mechanism of adaptation of the Pacinian corpuscle?
Which of the following best describes the mechanism of adaptation of the Pacinian corpuscle?
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The frequency of action potentials in the afferent neuron of a sensory receptor is 40 hertz when the receptor potential is –30 millivolts. Which of the following best describes the frequency of action potentials when the receptor potential is –60 millivolts (in hertz)?
The frequency of action potentials in the afferent neuron of a sensory receptor is 40 hertz when the receptor potential is –30 millivolts. Which of the following best describes the frequency of action potentials when the receptor potential is –60 millivolts (in hertz)?
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Which of the following tactile receptors is best suited to detect vibrations?
Which of the following tactile receptors is best suited to detect vibrations?
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Which of the following best describes the type of neuronal circuit typically used by the autonomic nervous system, which allows the output from the circuit to be enhanced and suppressed?
Which of the following best describes the type of neuronal circuit typically used by the autonomic nervous system, which allows the output from the circuit to be enhanced and suppressed?
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Study Notes
Sensory Receptors and Neuronal Circuits
- Rapidly adapting receptors respond quickly to a stimulus and then adapt, decreasing their firing rate even though the stimulus persists.
- Slowly adapting receptors continue to fire action potentials as long as the stimulus is present.
- Receptor potential is a graded potential that changes in amplitude based on the strength of the stimulus.
- Signal amplification is the process of increasing the strength of a signal.
- Divergence in the same tract can amplify a signal by sending it to multiple destination neurons.
- Type A-Beta fibers are the fastest type of sensory nerve fibers.
- Lateral inhibition is a process that sharpens sensory perception by suppressing the signal from neighboring neurons.
- Type C fibers are the slowest type of sensory nerve fibers.
- Merkel discs are a type of slowly adapting touch receptor.
- Reverberating circuits are self-stimulating circuits that continue to fire as long as they receive input.
- Adaptation is the process by which sensory receptors become less sensitive to a stimulus over time.
- The frequency of action potentials in a sensory neuron is proportional to the strength of the stimulus.
- Pacinian corpuscles are rapidly adapting receptors that are specialized for detecting vibrations.
- Autonomic nervous system uses reverberating circuits for regulation and control.
- Pacinian corpuscle adaptation is achieved by the redistribution of fluid within the corpuscle.
- Meissner corpuscles are rapidly adapting receptors that are sensitive to touch and low-frequency vibrations.
- Convergence from multiple sources is the process of combining signals from different neurons.
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Description
Explore the fascinating world of sensory receptors and neuronal circuits in this quiz. Test your understanding of rapidly and slowly adapting receptors, receptor potentials, and signal amplification. Delve into concepts like divergence, lateral inhibition, and the different types of sensory nerve fibers.
