When an action potential reaches the end of a cell, the passage of the action potential onto the next cell occurs with the help of _______ -sodium -all of the alternatives are correct -neurotransmitters -potassium

Q: After an action potential, the opening of voltage-gated ________ channels and the inactivation of…

A: Action potential When nerve cell respond to a stimulus, it generates electric impulse which travel…

Q: In an excitable cell at rest, we expect to find ______ ions effluxing out of the cell through leak…

A: The cell is said to be at resting membrane potential when the cell potential is at rest, and the…

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: Which of the following is contained inside the structure labeled "5"? Select all that apply. ооооо…

A: The synaptic knob (also known as synaptic terminal or bouton) is the part of a neuron that contains…

Q: Which of the following statements is not true about neurons?   When there is no active nerve…

A: Neurons, specialized cells within the nervous system, play a vital role in transmitting electrical…

Q: Question 2 of 18 Which statement is NOT true about the cells of the nervous system? Select the…

A: Introduction: A specific cell that carries signals and messages from and to the brain and various…

Q: Which statement(s) regarding ions is true when a neuron is at rest? Positively charged cations are…

A: Neurons are also known by the name nerve cells. These cells are referred to as the fundamental units…

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: Which of the following structures could NOT be a post-synaptic cell? Group of answer choices a bone…

A: Introduction: A specific cell that carries signals and messages from and to the brain and various…

Q: The action potential is a voltage pulse at one location on a cell membrane. How does it get…

A: Neurons are the basic structural and functional unit of the nervous system. Neurons have three…

Q: During the _____ phase of an action potential, both gates of the voltage regulated sodium channels…

A: The action potential (AP) is generated by the neurons and the muscle cells. The AP is comprised of…

Q: At __________ synapses, neurotransmitters hyperpolarize the membrane, by making it more permeable to…

A: The synapse is the connection between two neurons. In case of chemical synapse neurotransmitters are…

Q: D Question 9 Which of these are not a criterion for being a neurotransmitter? O It must be readily…

A: Introduction : Neurotransmitters are the substances that are released from the neuron terminal to…

Q: An influx of positive sodium ions causes opening of the activation gates of voltage regulated sodium…

A: VOLTAGE GATED SODIUM CHANNELS These are integral membrane proteins that change conformation in…

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

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

Q: Tetraethylammonia, a toxin that blocks potassium channels, will More than one answer may be…

A: Introduction : There are three phases of action potential. These are depolarisation, repolarisation…

Q: A presynaptic axon neurotransmitter acts to increase the postsynaptic neuron's permeability to…

A: Nerve cells are excitable cells whose principal function is to cause propagation of electrical…

Q: A patient is given a drug that blocks the L-Type calcium channel blocker. Which phase of the action…

A: Signal transduction pathways translate signals received at the cell's surface into cellular…

Q: eurons have a resting membrane potential of ___________________.   varying votage as type and…

A: The resting potential is mostly determined by the concentrations of the ions in the fluids on both…

Q: A post-synaptic cell responds to an incoming signal by opening chloride gates. What will be the…

A: The synapses are the neuronal connections in the nervous system. The synaptic junction allows the…

Q: The post synaptic cell will become depolarized and propagate an action potential if the summation of…

A: The nervous system consists of neurons and glial cells. Neurons and glial cells are involved in…

Q: Select any statements that are NOT true when a neuron is at rest. Anions are attracted into the cell…

A: Neurons are the primary cells of the nervous system. These are highly specialized cells that…

Q: Neurotransmitters are released by the:   Question 6 options:   Post-synaptic membrane   Target…

A: Neurotransmitters are chemical messengers of the nervous system that are released by the neurons of…

Q: ATP is used to power the creation of a neuron's resting potential. True False

A: Resting potential of the neuron is -70 mV.

Q: Compare and contrast action and graded potentials. Your answer should include a definition of each,…

A: An action potential is generated when the potential of a biological membrane rises or falls rapidly…

Q: Immediately after an action potential is .34 propagated, which one of the following ions :rapidly…

A: Action potential of a neuron is caused due to a change in the cationic gradients - sodium and…

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: What property is responsible for the smaller steady state DVm in the postsynaptic cell compared to…

A: The electrical activity in a neuron is characterized by the difference between the resting membrane…

Q: During the resting state, a neuron is: polarized with sodium ions outside the cell and potassium…

A: Introduction :  The fundamental component of the nervous system is the neuron. A cell body,…

Q: Using the graph, you would need an EPSP of ________mv to get an AP every 6ms.

A: EPSP or excitatory postsynaptic potential is developed by the binding of neurotransmitter with the…

Q: The all-or-none principle, associated with the action potential, states that once membrane potential…

A: Neurons are responsible for the electromagnetic conduction of the signals in the form of stimulus.…

Q: Of the following, which must be true for an action potential? I - Action potentials only occur when…

A: The action potential is a potential that is fired when the voltage-gated sodium ion channels open.…

Q: Which of the following is not correct about neurotransmitters? O they are stored in vesicles after…

A: The message or the electrical impulse enters the neurons from the dendritic surface in the form of…

Q: An influx of positive sodium ions eventually causes closing of the inactivation gates of voltage…

A: When a cell is at a resting state, generally the interior of the cell has negative charge than…

Q: explain as precisely as you can but in no more than 100 words the ionic basis of an action potential…

A: Introduction :- An action potential (AP) occurs in physiology when the membrane potential of a…

Q: If the resting membrane potential of a cell was +70 mV, the ELECTRICAL driving force on sodium would…

A: A neuron's purpose is to turn the message received from the external environment into an electrical…

Q: Describe what allows an action potential to move quickly along the membrane in one direction (why…

A: A nerve impulse, also called an action potential, is a brief electrical signal that travels along a…

Q: Fill in the blank:  As a result of an additive phenomenon called _______________________, the…

A: An action potential can be defined as a quick rise and a subsequent decrease in voltage or membrane…

Q: Ligand-gated ion channel don’t open until the neurotransmitter diffuses across the synapse and binds…

A: Voltage gated ion channels are critical in rapid electrical signaling between and within cells, and…

Q: the following structure will carry efferent impulses from central nervous system to skeletal muscles…

A: The image shown above represents the cross-sectional view of the spinal cord, an integral part of…

Q: An action potential Membrane potential (mV) -40 40 -65 II -80 0 -Overshoot Rising Falling phase…

A: Answer.  Voltage-gated sodium channel are inactivated and locked at point III. Option (b) is…

Q: The picture here of a cell with extensions reaching to capillaries and a neuron is a(n)…

A: The basic structure of neurons comprises dendrites, cell body, and axon. The message or the…

Q: A change in membrane potential which is due to ion influx or efflux in a single region with the ions…

A: Membrane potential is a key aspect of cellular function and cell-to-cell signaling, and thereby…

Q: A taser is a device used by police to control unruly criminals by delivering a large electrical…

A: Neurons are the special cells in human body which are excitable in nature.  They can transmit…

Q: Identifying Neurotransmitters 3) Produces response in postsynaptic cell - Qualifying condition:…

A: Postsynaptic potentials are changes in membrane potential that occur due to the action of…

Q: Which of the following takes place during an action potential? Na+ ions exit the cell causing…

A: The rapid and very fast change in the membrane potential during which the inside of the cell becomes…