When stimulated by effective steady stimuli, sensory receptors :-a- continuously discharge impulsesb- stop discharging after a short timec- produce an initial high rate of impulse discharge followed by decline of this rated- differ in their response ; some types discharge continuously, while other types do not respond at all

When stimulated by effective steady stimuli, sensory receptors :-a- continuously discharge impulsesb- stop discharging after a short timec- produce an initial high rate of impulse discharge followed by decline of this rated- differ in their response ; some types discharge continuously, while other types do not respond at all

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter6: The Peripheral Nervous System: Afferent Division; Special Senses

Section: Chapter Questions

Problem 13RE

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Similar questions

A reflex action :-a- is a fast brief response to a sensory stimulusb- is involved in regulation of voluntary movementsc- includes at least three sequential sets of neurons in its pathwayd- is always initiated whenever its specific receptors are effectively stimulated by a specific stimulus
Action potential frequency in phasic receptors with a prolonged stimulus action potential frequency in tonic receptars with a prolonged stimulus. Greater than Less than Equal to
Slowly adapting receptors differ from rapidly adapting receptors in :-a- stopping to discharge after a relatively longer period of constant stimulationb- detecting the dynamic properties of stimulic- detecting velocity of stimulid- generating receptor potentials as long as stimulus is applied.
Once initiated, the receptor potential :-a- spreads to a long distance along the sensory nerve fiberb- amplitude is not related to the strength of the stimulusc- always generates an action potential from the receptord- stays for a variable period depending on the type of the receptor
The conduction velocity in nerves is primarily dependent on the O localization of the Na+ / K+ pumps intensity and duration of the stimulus myelination and fiber diameter O fiber length and myelination O fiber length and fiber diameter
when a stimulus is applied for a prolonged period the rate of receptor discharge slows
A specific stimulus produces a receptor potential by :-a- inhibiting Na + influx into receptorb- inhibiting K + efflux from receptorc- enhancing Na + influx into receptord- enhancing K + efflux from receptor
Recruitment of a reflex response is due to :-a- difference in the amount of presynaptic inputs to the various efferent neurons initiating the reflexb- difference in the conduction velocity of the various afferent neurons mediating the reflexc- delay at the neuromuscular junctiond- presence of inhibitory interneurons in the reflex pathway
Receptor potential initiated by an adequate stimulus :-a- develops always at it full magnitudesb- undergoes temporal summation onlyc- undergoes spatial summation onlyd- could initiate an action potential
Cutaneous pain :-a- is always sharp in characterb- is transmitted by Aδ sensory fibersc- is always followed by hyperalgesiad- evokes spasm of nearby muscles
Indicate whether each of the following is an example of sensory transduction or transmission. lon channels in a sensory v [ Choose ] cell in the skin open in transmission response to a change in transduction temperature. The membrane potential in [ Choose ] the dendrites of a touch receptor moves toward 0 mV An action potential is [ Choose ] carried along a sensory neuron toward the brain
Receptor potential generates :-a- an electrotonic current which is transmitted along sensory fibers to the CNSb- a nerve impulse at the receptive region of the receptorc- a state of hyperpolarization of the receptor membraned- a nerve impulse at the spike initiating region of the receptor