The "All or None" response means that: A stimulus causes depolarization and repolarization regardless of the strength of the stimulus ) There is no threshold for an electrical stimulus signal to reach before depolarization and repolarization O Potassium channels open for depolarization and sodium channels open for repolarization O A stimulus has to be strong enough for depolarization to occur followed by repolarization

The "All or None" response means that: A stimulus causes depolarization and repolarization regardless of the strength of the stimulus ) There is no threshold for an electrical stimulus signal to reach before depolarization and repolarization O Potassium channels open for depolarization and sodium channels open for repolarization O A stimulus has to be strong enough for depolarization to occur followed by repolarization

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

Section6.1: Receptor Physiology

Problem 2CYU

See similar textbooks

Similar questions

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.
Receptor adaptation results when:a. sensory neurons stop sending action potentialsb. a stimulus is discontinuedc. action potentials from different neurons cancel one another outd. the action potentials do not reach the brain
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
What does a mechanically gated channel respond to?a. physical stimulusb. chemical stimulusc. increase in resistanced. decrease in resistance
when a stimulus is applied for a prolonged period the rate of receptor discharge slows
Proprioceptors include all the following types of receptors, except :-a- muscle spindlesb- pressure receptorsc- vestibular receptorsd- joint receptors
Detection of the stimulus modality depends upon :-a- the location of the receptors in the bodyb- the magnitude of the stimulusc- the anatomical connections between the receptors and specific sensory areas in the cerebral cortexd- the magnitude of the receptor potential
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
Nociceptors are pain receptors that respond to noxious stimuli, and send AP's to both the spinal cord and the brain. What type of stimuli activate nociceptor neurons?
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
Which type of synapse is better suited for vision and hearing, and why?A. Metabotropic synapses because they produce quick, brief effectsB. Metabotropic synapses because they produce longerlasting effectsC. Ionotropic synapses because they produce quick, brief effectsD. Ionotropic synapses because they produce longerlasting effects
The ability to localize the site of stimuli depends upon :-a- the type of the stimulated receptorb- connections between the receptor and the sensory cortexc- the rate of adaptation of the stimulated receptorsd- the nature of the stimulus