In which direction are potassium ions moving during phase 3 (repolarization) of the action potential? Select one: O a. Into the cell O b. No Movement O c. Out of the cell

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

A: Hello! Since you have asked multiple questions, we will solve the first question for you. If you…

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

A: Graded potentials are made by outside stimuli in sensory neurons or by neurotransmitters discharged…

Q: Arrange the events that occur during synaptic transmission. Use letters A-F to denote the correct…

A: The nervous system comprises the brain, nerves and spinal cord. The nerves are responsible for…

Q: Why do voltage-gated sodium channels have three states (open, closed, refractory/open-block)? Select…

A: The refractory period is the time during which a second action potential cannot be initiated &…

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

A: Action potential refers to the sudden rise and fall of membrane potential across a cellular membrane…

Q: Which is TRUE about neuronal membrane electrical and concentration gradients at the peak of the…

A: An action potential is sudden and transient changes in the voltage across a biological membrane. It…

Q: Which of the following describes the movement of the correct ion in the falling phase of the action…

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Q: This graph shows the relative voltage of a neuron's cytoplasm near the plasma membrane relative to…

A: * There are three stages in membrane potential  Depolarization  Repolarization Hyperpolarisation…

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

A: In the presence and absence of an impulse, the nerve cells exist in two states known as action…

Q: Each of the following is a correct relationship between action potential phase and channel status…

A: BASIC INFORMATION NEURON   It is the longest cell inside the human body  It is found in the brain…

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: Select one: O A. hyperpolarizing phase; K channels open B. hyperpolarizing phase: Na channels open…

A: The action potential is the change in the electric potential across the plasma membrane.

Q: At which point in the graph do voltage-gated potassium channels open? (Base your answer to this…

A: The action potential refers to the sudden changes in the resting membrane potential of the neuron…

Q: which are Communication between neurons is mediated by rapid changes in propagated along the length…

A:

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the…

A: Action potential - It is defined as a sudden temporary shift of rising or falling in membrane…

Q: Based upon the changes in permeability seen in the trace below and your knowledge of ion…

A: This is the graph which shows how a stimulus can arouse an action potential from a resting membrane…

Q: Epilepsy is a condition which results in seizures stemming from excessive or abnormal activity of…

A: A brief electrical signal that travels along the membrane of a neuron is known as an action…

Q: Which of the following events correctly ranks steps in an action potential? 1. Voltage-gated sodium…

A: Electrical signals are how neurons communicate. Electrical signals are generated when there is a…

Q: A membrane potential (Vm) labeled axis on the graph In the graph draw the phases of the action…

A: Introduction  Action potentials, those electrical impulses that go throughout your body, are nothing…

Q: Which of the following allows the cell to recover from hyperpolarization during an action potential?…

A: The transmission of signals across the different regions of the body occurs in the form of…

Q: An action potential is considered an "all or nothing" event. What does this mean? Explain using the…

A: Nerve impulse, also called action potential, is the change in the membrane potential due to  an…

Q: Action potentials propagate in one direction because of: O K* voltage-gated Channels become inactive…

A: The neurons send signals over long distances by generating and propagating action potentials over…

Q: physiological

A: Neurons (or nerve cells) are special cells that send and receive electrical signals in the body.…

Q: Diagram an Action potential: an action potential graph showing the 4 steps of an action potential…

A: Nerve impulse travels in the form of action potential. Every cell has a resting membrane potential…

Q: which of the following statements is false with regard to cell electrical impulses? a. an impulse…

A: An action potential or nerve impulse occurs when there is a difference in electrical charges across…

Q: The action potential is split into 4 parts (A-D). For each part, 1. Describe what stimulated the…

A: 1) Light  stimulated the channel. Sensory neurons, like the ones that sense light in your eyes, are…

Q: Indicate the specific events that are occurring at 1,2,3 and 4. B. At which area of the graph are…

A: Action potentials are nerve messages. Neurons produce and convey these signals through their…

Q: Consider the following image that shows the membrane potential in a neuron when it is transmitting…

A: In a resting nerve fibre that is not conducting any impulse, the axoplasm is contains high as conc.…