Which of the statements below describe a situation in which the change in membrane potential above could cause the firing of an action potential? Select all that apply. ___If the potential is counteracted by an IPSP. ___If the potential is strong enough to bring the axon hillock to threshold. ___If the neuron is in the relative refractory period. ___If the potential is supplemented by a simultaneous (or near-simultaneous) EPSP.

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: The refractory period goes from "absolute" to "relative" when:   The inactivation gate of Na+…

A: Introduction: When the stimulus strength reaches at least reach the strength of threshold, there is…

Q: If the membrane potential at the axon hillock becomes subthreshold, an action potential will be…

A: The region of the neuron from which the axon develops is known as axon hillock, and this region is…

Q: Discuss the activity, structures and chemicals of both the neural axon and receptor.  And a…

A: Neurons are the basic unit of the nervous system. It is the longest cell of all. STRUCTURE OF…

Q: "After an action potential has just passed through the axon hillock, the voltage-gated Na+ channels…

A: Thank you for the question  Answer : If a second action potential can be generated it refers to as…

Q: Action potentials are changes in membrane potential that are localized to a small area of the plasma…

A: Answer :  Movements potential travels alongside a neuronal axon: The action capability is pushed…

Q: Start by giving one, detailed sentence that describes the figures below. Then tell me what is…

A: An action potential is a characteristic pattern of quick rise and subsequent decline in voltage or…

Q: he rate of conduction of an action potential along a nerve fiber is affected by a range of things.…

A: Introduction Nerve conduction:- It is an electrochemical process, Conduction of nerve impulse occurs…

Q: A new drug opens calcium ion channels in the membrane of the postsynaptic neuron. Would this produce…

A: There are many different types of cells in the body which form various organs and organ systems. For…

Q: Which of the following statements is true? Chemical messengers within cells are always…

A: The central nervous system (CNS) is a complex network of nerve cells that process and coordinate the…

Q: When ionotropic receptors allow the influx of ions, the postsynaptic cell depolarizes. When they…

A: The neurons are the cells of nervous system that has the conducting capability. The nerve impulse…

Q: Tetrodotoxin is a poison that prevents voltage-gated channels from opening. Would this toxin prevent…

A: Tetrodotoxin is a potential neurotoxin which is extremely poisonous and can be found in the liver…

Q: What word is used to describe the summation of excitatory and inhibitory stimuli by a neuron?…

A: The nervous system is a complex system of nerves and specialised cells known as neurons. The nervous…

Q: Describe in words the sequence of events that occurs at an excitatory chemical synapse when an…

A: An excitatory synapse is one in which a presynaptic neuron's action potential increases the…

Q: Tru or

A: There is release of neurotransmitters by the inhibitory pre synaptic neurons that bind to the post…

Q: Compare and contrast graded potentials and action potentials. What are the functions of graded…

A: In animal cells, the plasma membrane expresses several types of ion channels that participate in the…

Q: What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of…

A: Transporters refer to the membrane protein that transports the molecules and ions from outside of…

Q: In the resting state, before or long after an action potential occurs, the activation gates of…

A: Voltage-gated Na+ channels have three main conformational states: closed, open and inactivated.…

Q: Which of the following can an EPSP give rise to? Group of answer options Local hyperpolarization…

A: The nervous system of a human being is a complex system that helps to coordinate behavior and…

Q: Describe the events that take place during an action potential. Begin at the point where an EPSP…

A: The nervous system is the portion of a creature's body that facilitates its actions and sends…

Q: Immediately after the repolarization phase of an action potential, the neuronal membrane is…

A: The neurons are the specialized cells which make up the nervous system. These cells have a special…

Q: These neurons belongs to the CNS: (More than one possible choice)     A neuron in the brain     A…

A: Neurons in the nervous system are the brain's fundamental functioning unit, a specialized cell that…

Q: At a chemical synapse, an action potential triggers an influx of Ca2+ which . Select one: O A.…

A: When the action potential reaches the presynaptic neuron terminal, it activates the voltage-gated…

Q: Describe how different post-synaptic potentials can be summated on a single neuron to determine if…

A: Synapse is a junction that mediates information transfer from one neuron to another neuron or an…

Q: If two action potentials from two different presynaptic nerve cells reach the target cell at the…

A: Summation means addition of any two or more things. Summation is of two types namely: Spatial…

Q: Which phase of impulse transmission would be lacking in a person with Alzheimer's disease? Select…

A: Alzheimer's disease is a brain disorder that results in damage to the brain cells "neurons" and case…

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

A: An action potential can be defined as a short-term change that can be observed in electrical…

Q: Which of the following best describes saltatory conduction? A process in myelinated axons where the…

A: In contrast to the slow continuous process of depression extending down an unmyelinated axon,…

Q: Describe the resting potential for neurons. How is this potential established? Describe the…

A: A neuron or a nerve cell is the structural and functional unit of the nervous system. They are…

Q: An action potential signals the release of acetylcholine from the presynaptic neuron. It binds the…

A: An action potential signals the release of acetylcholine from the presynaptic neuron. It binds the…

Q: Using an annotated diagram and a specific example, explain the difference between a excitatory post…

A: Changes in postsynaptic conductance and the possible changes that follow them modify the likelihood…

Q: Which of these terms is correctly matched with its definition ordescription?a. depolarization:…

A: The cell membrane has a membrane potential associated with it. The electric potential outside the…

Q: Which one of the following statements about the propagation of the action potential is incorrect? O…

A: The action potential is any shift in the membrane potential due to an increase or decrease of…

Q: In the autoimmune disease multiple sclerosis, a person's immune system attacks and destroys the…

A: Introduction The nervous system is a major regulatory, regulatory, and communication system in the…

Q: You have a neural system with three neurons; two presynaptic (PS1 and PS2) and one postsynaptic…

A: Neurons are the fundamental, structural, and units of both the central and peripheral nervous…

Q: Which determines a neuron's maximal rate of firing? The duration of the refractory phase O The…

A: Neurons (also known as neurones or nerve cells) are the basic units of the brain and nervous…

Q: "Hebb's Rule" says, in effect, that   a neuron that is repeatedly activated will have an…

A: Donald Hebb suggested the Hebb's law postulate in 1949 [1]. It's a learning rule that explains how…

Q: Analyze the provided hypothetical neuronal set-up and its corresponding table which describes each…

A: Nerve impulses are the key to the brain. They allow neuron to communicate with each other to deliver…

Q: Describe how an action potential is generated in a neuro

A: The nervous system comprises organs and tissues made up of neurons (nerve cells). Nervous system is…

Q: The effect of the inhibitory neurotransmitter on the postsynaptic membrane is to   a. maintain the…

A: Depolarization of membrane potential excites the neurons. Depolarization refers to the change in…

Q: Describe the four stages of an action potential in what is happening in each stage

A: The nerve impulse is changed in membrane voltage. Normally all the cells have a change in the…

Q: If a neuron is stimulated simultaneously by 2 stimuli at its dendrites (one generates a very large…

A: The cells of nervous system are called neurons. They have 3 distinct parts, including the body of…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.