Which of the following situations correctly illustrates the all-or-none principle?Select one:o a. A smaller voltage change will result in a smaller nerve impulse.o b. A stronger impulse can be generated by increasing the number of open voltage-gated sodium channels during depolarization.O C. A greater voltage change and a smaller voltage change will result in the same action potential as long as the threshold potential has been reached.o d. A faster impulse can be generated with a voltage change that is greater than the threshold potential.

The magnitude of the action potential in any nerve fiber is independent of the strength of the…

Which of the following situations correctly illustrates the all-or-none principle? Select one: a. A smaller voltage change will result in a smaller nerve impulse. b. A stronger impulse can be generated by increasing the number of open voltage-gated sodium channels during depolarization. c. A greater voltage change and a smaller voltage change will result in the same action potential as long as the threshold potential has been reached. d. A faster impulse can be generated with a voltage change that is greater than the threshold potential.

Which of the following situations correctly illustrates the all-or-none principle? Select one: a. A smaller voltage change will result in a smaller nerve impulse. b. A stronger impulse can be generated by increasing the number of open voltage-gated sodium channels during depolarization. c. A greater voltage change and a smaller voltage change will result in the same action potential as long as the threshold potential has been reached. d. A faster impulse can be generated with a voltage change that is greater than the threshold potential.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Similar questions

What property is responsible for the initial ramp of the membrane potential at the onset of the current pulse?A: Membrane capacitanceB: Membrane resistance explain your choice
Temporal summation of excitatory inputs onto a neuron (we will refer to that neuron as Neuron A) refers to the... (Check all the following that can correctly complete this sentence) a.) additive effect of simultaneous inputs from multiple neurons on to Neuron A b.) ability of sequential inputs from one neuron to increase ion flux and voltage change in Neuron A c.) increased likelihood of Neuron A reaching threshold and firing an action potential d.) process of coordinating the timing of a movement
Explain both question with proper explanation with step by step answer.
A, open B,inactivated C, closed but capable of opening
Illustrate how you would set up a voltage clamp experiment to study the eletrochemical propertis of an axon. Include appropriate phrase explaining the use of each mentioned instrument or device
Each of the following is a correct relationship between action potential phase and channel status except Select one: O A. hyperpolarizing phase; K channels open O B. hyperpolarizing phase: Na channels open O C. depolarization: Na channels open OD.repolarizing phase: Na channels closed O E repolarizing phase: K channels open ch
Which of the following statements relating to depolarization is incorrect? a. it is a reduction in membrane potential b. inside the membrane becomes less negative than resting potential c. enhances the probability of producing an action potential d. causes the voltage of internal membrane towards zero e. none of the above
Using cable theory to describe axon conduction would tell us a. the larger the diameter of the axon the faster the propagation of the action potential b. the larger the diameter of the axon the slower the propagation of the action potential c. the smaller the diameter of the axon the faster the propagation of the action potential d. that having big axons is of no benefit and only takes up a lot of space e. the nervous system mainly has small axons because they are much faster than large ones
B A C Match the action potential phase in the plot below with the correct image below showing the Na+/K+ ATPase and voltage-gated K+ and Na+ channels. +50- D -50- -70- 0 E A B M D + OUT -IN [Choose ] [Choose] [Choose] SHE - OUT IN + OUT IN
The inward rectifier does not: A. Conduct potassium. B. Carry inward current during the action potential. C. Conduct inward current more readily than outward current. D. Have a tetrameric structure. E. Lack an S6 voltage sensor.
When a neuron reaches threshold voltage, all voltage-gated channels are triggered to make conformational changes. The order in which this happens comes down to the timing/speed/kinetics of the different gates on the channels. Put the following events in the order they occur after a neuron reaches threshold voltage. 1. Voltage-gated K+ channels finish closing their gate. 2. Voltage-gated Na+ channels open their activation gate, increasing Na+ permeability. 3. Voltage-gated Na+ channels close their inactivation gates, reducing Na+ permeability. 4. Voltage-gated K+ channels open their gate, increasing K+ permeability. 5. Voltage-gated Na+ channels reset to their original conformation.
Which of the following statements is FALSE? a. graded potentials can sum over time and space, action potential cannot b. action potentials have refractory periods, graded potentials do not c. action potentials are all-or-none, graded potentials are not d. graded potentials and action potentials are caused by ions moving through open channels e. all of the above statements are true (if all of the above are true this is the correct answer) ....