Tonic receptors a.are fast-adapting. b.do not fire continuously to a sustained stimulus. c.produce action potentials at a greater frequency as the generator potential is increased. d.are described by all of these.
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Tonic receptors
a.are fast-adapting.
b.do not fire continuously to a sustained stimulus.
c.produce action potentials at a greater frequency as the generator potential is increased.
d.are described by all of these.
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- Given what you already know about the sensation of pain, what is the expected change in membrane potential when pain is felt by sensory receptors? Select one: a. The nerve impulses increase in strength and lower the threshold potential. b. The nerve impulses occur more frequently, thereby transmitting more action potentials according to the intensity of pain. c. The nerve impulses occur more frequently and prevent neurons from entering the refractory period. d. The nerve impulses increase in strength, thereby making the maximum membrane potential higher than normal.Sensory receptor cells transduce physical or chemical stimuli: a) by limiting action potentials b) from chemical to electrical energy c) from an action potential into a synaptic potential d) by summing incoming action potentials e) into a change in the membrane potential of the sensory receptor cellsIf a kitten has one eye shut for its first few weeks of life, its visual cortex becomes insensitive to that eye. Why? a. The receptors die. b. Any axon that is not used for that long becomes unable to respond. c. Activity from the active eye displaces synapses from the inactive eye.
- Tristan accidentally touches a hot propane torch. He immediately withdraws his hand and then exclaims “ouch!” Why did Tristan exclaim “ouch!” after he had withdrawn his hand from the hot coffee? Select one: a. The threshold of the sensory receptor was exceeded and an action potential to the brain could not be triggered. b. The neural processing is faster through the spinal cord than the processing involving the brain. c. The sensory receptors in the fingers were damaged by the hot torch and were not able to send a fast signal to the brain. d. The hot torch triggered too many receptors and resulted in an excessive number of nerve impulses travelling to the brain. The brain was not able to process all the signals fast enough.The brain knows whether an incoming nerve impulse is light, sound, or pain because of thea. nature of the sensory receptor.b. frequency of the sensory signal.c amplitude of the sensory signal.d. wiring to specific CNS locations.What effect would a WEAKER stimulus have on C? a. Greater amplitude (height) b. Lower amplitude c. Narrower curve d. No change e. Wider curve
- Choose the right one : < > stimuli will activate the somatic corpuscular first order neurons. A. <Temerature> B, <Light physical pressure> C, <Noxious> D, <Strong physical pressure> E, <Vibration>Ms. Young feels deep pressure during a tooth extraction. Which type of sensory receptor detects this sensation? Question options: A) lamellar corpuscle B) Golgi tendon organ C) free nerve ending D) proprioceptor E) Meissner's corpuscleWhich of the following changes to an action potential indicates a larger stimulus? a. Increased frequency b. Increased wavelength c. Increased amplitude d. Increased speed
- Please ASAP. Thanku. What is a receptor (generator) potential? a. A potential that is generated by the sensory stimulus b. A change in the membrane potential of the receptor cell caused by a physical stimulus c. Compound nerve action potential d. A change in the membrane potential of the ascending axonTransduction of a stimulus usually causes depolarization of a sensory receptor. a.)In most receptors, what is the chemical basis for this depolarization (that is, what is the specific mechanism for the change)?b.)How is a photoreceptor different from other receptors in terms of its membrane potential? c.) Explain how photoreceptors in the light can lead to excitation of some bipolar cells and inhibition of othersWhen arm muscles hurt after heavy exercise, the pain is detected bya. neurotransmitters.b. interoceptors.c. associative neurons.d. exteroceptors.