"After an action potential has just passed through the axon hillock, the voltage-gated Na+ channels there won t open for a period of time. However, if the stimulus is strong enough, another action potential can be triggered even during this resting time. This refers to" refractory resting period intermediate resting period relative refractory period absolute refractory period o000

Q: When EPSP and IPSP occur simultaneously the postsynaptic membrane :-a- becomes depolarizedb- becomes…

A: EPSP refers to Excitatory Postsynaptic Potentials and IPSP refers to Inhibitory Postsynaptic…

Q: Which refers to the time during which a neuron can undergo an action potential? O the resting…

A: Nervous system is one of the most important system of our body it send and receive information via a…

Q: Myelinated axons: Are able to transmit signals faster than unmyelinated axons Are relatively rare…

A:

Q: The following figure is showing; Node Node Myelin sheath Node of Ranvier (a) Na+ ONa* Depolarization…

A: Axons are slender fibres that stretch from a neuron, or nerve cell, and are accountable for…

Q: After the action potential reaches its peak, the potential across the membrane falls toward its…

A: The action potential is defined as the electrical signaling, which occurs in the neuronal cells, due…

Q: If we started an orthodromic action potential at the axon hillock and an antidromic action potential…

A: * Two types of directions can be seen in the electrical stimulus. Orthodromic direction:  when an…

Q: What event triggers an action potential?a. Opening of sodium channelsb. Opening of delayed potassium…

A: 1- Opening of delayed potassium channels 3-High concentration of negative ions outside the cell.…

Q: refers to the ability of neurons to produce action potentials that travel from axon hillock up…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is Excitability. Excitability Is Ability Of A…

Q: What guarantees that there are unidirectional action potentials? Choice A threshold  B.…

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

Q: Repolarization of an axon during an action potential is produced by a. inward diffusion of Na+. b.…

A: A stage of action potential in which the cell undergoes a decrease in voltage, is known as…

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: receptors have their neurotransmitter binding site and ion channel are components of different…

A: Answer 1: the receptors have their neurotransmitters binding site and ion channels are components of…

Q: Why are action potentials usually conducted in one direction?(A) Ions can flow along the axon in…

A: An action potential is defined as the sudden, fast, transitory, and propagating change in electrical…

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: What is the approximate magnitude of the IPSP (how many mV)?What is the approximate magnitude of the…

A: IPSP (inhibitory postsynaptic potential) and EPSP (Excitatory postsynaptic potential) are the action…

Q: A nurse uses a whirlpool to relax a patient following intensephysical therapy to restore movement in…

A: Sense of pain is mediated by the nervous system. Neurons are the principal functional cells of the…

Q: Which of the following is a correct statement of the all-or-none principle? Select one: U a. A…

A: The action potential is known to have full response always that means there is no concept of weak or…

Q: You discover a new toxin that causes excessive opening of Kv channels. What effect is this new toxin…

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

Q: All of the following are directly involved in synaptic transmission excepta. voltage-sensitive ion…

A: All of the following are directly involved in synaptic transmission except

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: Refers to the temporary time in which a neuron cannot be stimulated resting potential O refractory…

A: refractory period.

Q: When they are not being stimulated, neurons have an electrical charge across their membranes called…

A: The control and coordination of the body in humans occur by two systems: the nervous system and the…

Q: Ordinarily, a neuron’s trigger zone is activated before any other part ofan axon, so a wave of…

A: Nerve cells are electrically excitable cells that method and transmits information by electrical and…

Q: Action potentials travel only along myelinated axons; unmyelinated axons do not support action…

A: An action potential is a sudden increase and eventual fall in voltage or membrane potential over a…

Q: Which of the following are the likely explanations for the failure of a postsynaptic neuron to…

A: The postsynaptic element is often the soma or dendrite of a postsynaptic neuron. The other side of…

Q: What guarantees that there are unidirectional action potential? A. threshold B. depolarization…

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

Q: Negative feedback Receptor Effector Departure from Return to resting level Resting level Positive…

A: So major difference is the positive feedback moves the system away from the target of equilibrium by…

Q: During an IPSP, the postsynaptic membrane becomes more permeable to GABA. O Ca2+. Na+. O K+.…

A: The IPSP stands for Inhibitory postsynaptic potential. It occurs when ion channels open resulting in…

Q: Immediately after an action potential has peaked, which cellular gates open? O calcium Ochloride O…

A:

Q: If an axon ([Na+]in = 200 mM) is bathed in solution consisting of [Na+]out = 10 mM, will there be an…

A: Action potentials are nothing but the electrical impulses that transmit signals around the body.…

Q: During a relative refractory period of an action potential   A. Another action potential can be…

A: Action potential (AP) is the mode through which a neuron transports electrical signals. It is…

Q: What type of interaction is occurring at the trigger zone between two graded potentials arriving…

A: Action potential : As the signals are passed through the neurons, a massive increase in membrane…

Q: In this phase, ALL voltage-gated Na+ channels are in the process of re-setting and cannot be opened…

A: An abrupt, quick, temporary, and spreading shift in the resting membrane potential is classified as…

Q: Inhibitory postsynaptic potentials cause what type of change at the post-synaptic membrane?…

A: Introduction:  Post-synaptic potentials are neurotransmitter receptors that mediate changes in…

Q: Which statement below best describes why action potentials travel in only one direction? O The…

A: Action potential refers to the rise in the electrical activity from a resting state due to an…

Q: ACLIOr potential +40 Falled Threshold -55 initiations Resting state -70 Stimulus 1 Refractory period…

A: The nervous system is the network of control and coordination in the body. The stimulus received by…

Q: Which of the following is FALSE about action potentials?      At resting potential, there are more…

A: Change in the membrane potential are brought about by changes in ion movement across the membrane.…

Q: The equilibrium potential for K* in neurons is ordinarily nearest- A. the equilibrium potential for…

A: The correct option is B - resting potential

Q: Which of the following is true of nerve impulse conduction? O Saltatory conduction occurs on…

A: Introduction A nerve fiber is a long and a slender projection of the neuron. It conducts the…

Q: Which statement is true regarding chemical neurotransmission? O An IPSP closer to the soma will…

A: The cells of the nervous system have a significant functionality i.e. Communication. At the neuronal…

Q: Which of the following statements is TRUE about temporal summation? The postsynaptic cells potential…

A: Introduction :- Sensory summation that involves the addition of single inputs over a short period of…

Q: When a graded potential summates to threshold at the axon hillock, O ligand-gated Ca+2 channels…

A: The rapid change in membrane potential is known as an action potential. It is governed by the…

Q: During the refractory period a) if a neuron reaches threshold the action potential goes to…

A: Neurons are the cells of the nervous system.

Q: After a receptor cell is stimulated, the bipolar cell receiving input from it shows an immediate…

A: The retina is the major tissue that receives light and is located at the back of the eye. It…

Q: ing of potassium (K+) channels on dendrites of a postsynaptic neuron will have what effect?  A)…

A: Opening and closing of ion channels on the membrane leads to the Hyperpolarisation and…

Q: Which of the following is NOT true regarding the changes that occur during an action potential.…

A: An action potential occurs when the membrane potential of specific cell location rapidly rises and…

Q: Which of the following statements about hyperpolarization are correct? Pick all that apply to what…

A: Hyperpolarisation is an event that occurs in neurons during the action potential.