Which of the following best describes the electrical state of a neuron at rest? a. The inside of a neuron is more negatively charged than the outside. b. The outside of a neuron is more negatively charged than the inside. c. The inside and the outside of a neuron have the same electrical charge. d. Potassium ions leak into a neuron at rest.

Q: The release of a neurotransmitter from a terminal button produces an inhibitory postsynaptic…

A: The neurons, also known as the nerve cells, are responsible for conduction of an impulse. The…

Q: A perturbation that alters the membrane potential at a site on a neuronal axon will pass to…

A: Ion transport through ion gated channels is an example of passive transport because energy is not…

Q: The exocytosis of the synaptic vesicles depends on:

A: Synapse is the junction between two neurons. It is formed between the dendrites of one neuron and…

Q: When the neuron’s membrane is at rest, where are the sodium ions and potassium ions most…

A: Answer is b.) Sodium is mostly inside and potassium is mainly outside.

Q: Which of the following primarily reflects the opening of voltage-gated Na* channels? A. The resting…

A: Voltage-gated Na+ channels are gated, meaning that they can be opened or closed in response to…

Q: Voltage-gated Na+ channels are.... (select all that apply).  Group of answer choices: A. Opened by…

A: The channels are basically membrane proteins that act as transport protein through which various…

Q: During repolarization a  potassium ions (K* ) flow into the neuron. b  potassium ions (K* ) flow…

A: The response that our body gives to any external stimuli is due to the transfer of impulse from the…

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: Which of the following is NOT an example of communication that happens from one neuron to another…

A: Answer: - Option a - Endocrine signalling (ex. hormones secreted into the bloodstream travel and…

Q: A change in the voltage across a neuron’s plasma membranethat makes the neuron less likely to fire…

A: The neuron is the structural and functional unit of the nervous system. The neuron is also known as…

Q: gradient is responsible for both the resting membrane potential and the action potential in the…

A: resting  neuron has a certai. voltage across its membrane called the resting membrane potential.

Q: All the following are the right description of communication between neurons EXCEPT Select one: a.…

A: Neurons communicate with one another by means of electrical impulses called action potential' and…

Q: Local anesthetic is often used in dentistry to lessen the sensation of pain during dental…

A: When membrane is in resting condition, it is only permeable to potassium ions and nearly impermeable…

Q: Select one: a. increased amount of ATP b. movement of chlorine down its concentration gradient c.…

A: Introduction  Information is transmitted via neurons. They communicate between various brain regions…

Q: Use what you know about the physiology of neurons to answer the following questions. Treat questions…

A: Resting membrane potential is a state in which normally the neuron remains in, when there is no…

Q: Which of the following statements regarding polarized membranes is incorrect? a. There is a…

A: At rest, the ionic composition of the interior and outside of a neuronal membrane varies. As a…

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

A: Ans:- the option is (c)-the voltage gated sodium chennel.

Q: Depolarization and repolarization changes that occur during the action potential are produced by…

A: Introduction: Just neurons and muscle cells are fit for creating an action potential and that…

Q: In a resting neuron, which of the forces listed below will act to push sodium (Na+) ions into the…

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: What happens to the sodium when the sodium channels open?

A: Sodium channels are basic film proteins that structure particle channels, directing sodium…

Q: In a chemical synapse,a. action potentials in the presynaptic terminal cause…

A: An electrical synapse can be described as a type of synapse that contains channel proteins…

Q: .dחaMa"in it the

A: The equilibrium potential is the particular membrane potential where the net flow through any open…

Q: At rest, a neuron has a lower concentration of sodium than the surrounding fluid. When a neuron…

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

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: A channel opens on a postsynaptic membrane that causes a negative ion to leave the cell. What type…

A: Graded potentials are changes in membrane potential that vary in size, as opposed to being…

Q: Which of the following statements relating to depolarization is incorrect? a. it is a reduction in…

A: The central nervous system consists of numerous specialized cells called neurons. The neurons are…

Q: When a neuron reaches threshold voltage, all voltage-gated channels are triggered to make…

A: Neurons are specialized cells that transmit information in the nervous system. When a neuron…

Q: There is a type of toxin found in the liver of the puffer fish that prevents the opening of…

A: Introduction  The neurotoxin tetrodotoxin (TTX) is highly toxic. Its name is derived from the group…

Q: Organophosphate pesticides inhibit the action of acetylcholinesterase. What effect does this have in…

A: Organophosphate pesticides (OP) are broad-spectrum chemical compounds comprised of a phosphate…

Q: What are all the possible ways that a neurotransmitter is removed from the synaptic cleft? Select…

A: Neurotransmitters play a crucial role in transmitting signals across synapses in the nervous system.…

Q: What determines the effect of neurotransmitter release on the post-synaptic neurons?  a. the size of…

A: Neurotransmitters are chemicals responsible for carrying a signal or an impulse via a synapse. They…

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: Which one of the following statements about gap junctions or electrical synapses is incorrect? A.…

A: Electrical coupling is the transfer of coordinated action potentials from one cell to the next via…

Q: In the membrane of a neuron, what happens during an IPSP? A. All the ion gates in the membrane…

A: The nerve tissue is made up of many nerve cells called as neurons. These neurons are the structural…

Q: What statement about synapse activity is false? A.The input of sodium ions by AMPA receptors is…

A: The actual location where information is passed between neurons is at synapses. The connectors known…

Q: Suppose you want to cause the presynaptic terminal of an axon to release its transmitter. How could…

A: Synapse was name given by Sherrington. Synapse is junction between two neurons where information is…

Q: During an EPSP, the _____ gates in the membrane open. During an IPSP, the _____ gates open. a.…

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

Q: Draw a simple schematic of a neuron and label its parts. Where does “information” usually go in and…

A: Neurons are the nerve impulse generating and conducting cells in the nervous system that are…