Which of the following would occur if a neuron was experimentally stimulated simultaneously at both ends? The action potentials would pass in the middle and travel to the opposite ends The action potentials would stop as they meet in the middle. The stronger action potential would override the weaker action potential. Summation would occur when the action potentials meet in the middle, resulting in a larger action potential.

Q: In the figure to the left, name the 4 phases of the action potential (Note: you have to write in…

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Q: A neuron with a resting membrane potential of -75 mV receives multiple inputs giving rise to the…

A: The action potential is a condition of a nerve impulse or electrical activity when there is a…

Q: A graded potential that achieves threshold leads to the generation of an action potential. Which one…

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Q: Which of the following describes a threshold potential?   A brief reversal of the charge difference…

A: Answer. All cells have an electrical potential difference, or membrane potential, across the plasma…

Q: If you inhibit the closing of sodium channels what do you predict the effect on neuronal function…

A: Action potential in neuron is the direct consequence of voltage gated sodium channel. During the…

Q: You are recording the electrical activity of a cell body with a resting membrane potential of -70…

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Q: Draw a typical action potential (correctly label axis) and explain in words the roles of ion…

A: An action potential (AP) occurs when the membrane potential of a particular cell position rises…

Q: Explain two possible reasons for neuron 2 not firing.

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Q: Which of the following occurs immediately after the peak of an action potential? The membrane…

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Q: Consider the following graph of an action potential: 60- 30- membrane potential (mV) O -30- -60 line…

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A: EPSP refers to the excitatory postsynaptic potential which is generated as a result of the…

Q: Describe the steps including the roll of ion terminals in a neuronal action potential

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Q: O into the spinal nerve, past the dorsal branch and into the rootlet of the chest.

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Q: The axon of neurone is stimulated experimentally with 25 mv pulse which initiates an action…

A: A neuron is made up of a soma or cell body and a neurite. Neurons transmitting signals away from the…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Ans: Chloride (Cl- )

Q: In an experiment, a freshly isolated neuron is placed in a bath that has been almost completely…

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Q: The above repolarization of a neuron will result in which of the following ionic currents? a…

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Q: Using the neurons below, how can you decrease the connection strength (amplitude of EPSP) onto the…

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Q: When a neuron is a rest, the sodium ions flow through the membrane at a very low rate. Why is this?…

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Q: ou observe that a neuron treated with a metabolic inhibitor which prevents ATP generation still can…

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Q: of the stages of an action potential, including a description of and explanation for the refractory…

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Q: I have stimulated a neuron with dopamine for a second followed by treating it with cocaine and…

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Q: +50 CD Membrane Potential (mV) -50- A -100 E Time -> O A OB

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Q: In an experiment, the extracellular [Na+] surrounding a nerve cell was reduced from 145 to 45 mM.…

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Q: Imagine that you are a scientist testing the action potential conduction rates in two different…

A: The neuron is the electrically excitable cells in the nervous system. Nerve fiber or axon is a…

Q: The ions that most contribute to the voltage properties of the neuronal membrane are: chloride,…

A:

Q: Which of the following would occur if you were measuring the voltage of a motor neuron that was…

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Q: An action potential has reached the axon terminal of a presynaptic cell. As a result of the action…

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Q: Which of the following situations correctly illustrates the all-or-none principle? Select one: a. A…

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

Q: During the action potential, which of the following activity is LIKELY to occur? Select one: a. Na+…

A: An action potential (AP) occurs in physiology when the membrane potential of a given cell location…

Q: f a post synaptic neuron is stimulated to threshold by spatial summation this implies that the post…

A: The nervous system is composed of millions of nerve cells called neurons. Synapses are junctions…

Q: You find a neuron whose resting potential is -90mV. Which of the following are likely to be true?

A: Neurons are structural and functional units of the nervous system. They are originated from…

Q: About neuronal excitability, what are the correct statements?    Neurons communicate via action…

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Q: The strength of a stimulus is communicated to the Axon terminal button by_ of action potentials a.…

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