Why can a neuron only send a signal in one direction? Because an action potential only travels from dendrite to axon terminals Because my teacher says! (This is not the answer) The fibers of a neuron are only facing in one direction After a membrane experiences an action potential it is in the refractory period and can no longer "fire"

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 occurs immediately after the peak of an action potential? The membrane…

A: Change in electrical potential related with the impulse entry along the membrane of a muscle cell or…

Q: Which of the following choices correctly fills in the blanks? After repolarization, the sodium ions…

A: The action potential is the process by which the signal propagates through the neurons, and this…

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: 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 does NOT contribute to the establishment or maintenance of the neuron resting…

A: Neuron or nerve cells are cells that act as messengers, they are able to undergo  electrical…

Q: Action potentials are generated at receptor sites. If you touch an object tha rough, which one of…

A: The signals for senses and movements in the body are generated from the central nervous system…

Q: Which neuron will conduct impulses most rapidly? Neurons with large diameter unmyelinated axons…

A: Neurons are the basic building blocks of the brain and nervous system; they are the cells that…

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

A: The correct answer is "into the spinal nerve, past the dorsal branch and into the rootlet of the…

Q: What happens to sodium channels and potassium channels during repolarization of a neuron? both…

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

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

A: A neuron is a specialized type of cell found in the nervous system that transmits electrical signals…

Q: The main function of an axon is to... genreate EPSPs or IPSPs when neurotransmitters bind their…

A: Nervous system involves highly complex part of the animal that controls and co-ordinates the actions…

Q: If the plasma membrane of an electrically excitable cellwere depolarized to threshold in the center…

A: An action potential is defined as a swift increase that is followed by a drop in the voltage or…

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

A: Ion channels are essential components of neurons that allow for the production and transmission of…

Q: You are investigating the effects of a new drug your lab has created. You have an intact synapse…

A: The neurotransmitter proteins are transcribed in the nucleus and translated in the cytosol following…

Q: An action potential at a given stretch of a neuron's axon does not re-stimulate the neighboring…

A: Action potential It is defined as the rapid rise and subsequent fall in membrane potential across a…

Q: Place the following structures in the order that an electrical impulse would travel beginning with…

A: Neuron:-It is a specialized cell that is responsible for the conduction of impulses. Nervous tissue…

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: EPSP acilitates depolarization of postsynaptic mem ne by increasing the permeability of the membrane…

A: Answer.    The correct answer is option (d) An EPSP facilitate depolarization of the postsynaptic…

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

A:

Q: Which ion concentration relationship is true when a neuron is at rest? (Select all that apply) More…

A: When a neuron is not sending a signal it is at 'rest'. During the rest state, all the voltage-gated…

Q: How does myelination affect the speed of the action potential? by increasing the concentration…

A: Neurons have the ability to generate and conduct nerve impulses that is the fundamental basis of…

Q: What is responsible for action potentials propagating in one direction? The inactivation of voltage…

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

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: If the neuron is stimulated such that its membrane potential changes to 50 mV, what is the sign of…

A: The membrane potential is defined as the variance in electrical potential throughout the plasma…

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: Why does an action potential move in an all-or-nothing fashion down the length of an axon without…

A: Henry Pickering Bowditch first discussed the all or none law in 1871 in heart muscle. It means that…

Q: Which of the following situations O None of these result in exten O Compromising the inactivatio…

A: Normally, the cells maintain a negative charge compared to the exterior of the cell. This charge…

Q: Which very specific synapse will produce the fastest propagation of an action potential? axosomatic…

A: Introduction A synapse is a junction where the axon of one neuron cell contacts another. Two types…

Q: An action potential is generated at the... trigger zone of the axon postsynaptic membrane cell body…

A: Neurons are the excitable cells within the nervous system. When a neuron is triggered, it propagates…

Q: An action potential does not get smaller as it propagates along an axon. Why not?

A: The nervous system has the control for the conduction of the electrical impulses from the…

Q: On this motor neuron, Add in and label: dendritic spines an axon collateral, with axon terminals…

A: Neuron: The core component of the nervous system is neurons which include the brain, spinal cord,…

Q: You have a photoreceptor cell in a dish. You are recording its membrane potential while flashing…

A: Answer :- Option (B) is correct. - The cell depolarizes, with brighter light causing more…

Q: Early in an action potential, the inside of the axon becomes less negatively charged relative to the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: presynaptic cell synaptic cleft postsynaptic cell dendrite O 1,2,3,4 O 1,3,4 O2,3,4 1,2,3,4,5

A: Synapse is the junction point between two neurons. Nerve impulsive is passed from one neuron to the…

Q: on that's unable to produce and release neurotransmitters. C that neuron still have an action…

A: Synapse will occur in two types: Electrical synapse: In this the signal is transmitted directly…

Q: Which of the following would most likely occur if you experimentally depolarise the middle of an…

A: Neuron is a chief structure of nervous system which helps in transfer of impulse from one part to…

Q: What part of the neuron carries impulses away from the cell body? Choose one.   - dendrites -…

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

Q: You are studying a cross-sectional tissue slice of a nerve using a transmission electron microscope.…

A: Neurons are the building blocks of nervous system and structurally contains dendrites, an axon and a…

Q: of the following parts?     Axon     Dendrite     Soma     All of the above

A: The connection of the brain with the body is maintained by the nerve cell. The nerve cells are part…

Q: An Intact Neuron and Voltmeter Select one: +H -0,+ V the neuron is resting + + ++ The voltage…

A: Introduction  According to the classical doctrine of the nervous system, an animal's nervous system…

Q: A drug that blocks Na+ channels in neurons does so not only in the axon but also in the dendrites…

A: Sodium channel blockers are used clinical for various purposes like local anaesthetic agent,…

Q: What causes Hyperpolarization following the spike of the action potential? Voltage-gated K+ channels…

A: An action potential is a rapid and transient electrical signal that travels down the axon of a…

Q: 1)  The interior of an axon at rest     is negatively charged relative to the outside     is…

A: Neurons are the basic units of the brain and nervous system, responsible for receiving sensory input…