What types of ion channels are most important for conduction of a nerve impulse?

Q: c) Draw a diagram indicating how the ion concentrations will change during the repolarization phase…

A: All cells generate an electrical potential known as membrane potential across the plasma membrane.…

Q: The Na+/K+ pump is important for ________ in neurons. A) the depolarizing phase of the action…

A: Neurons are the basic structures and functional units of the nervous system. The axon or the…

Q: What are the two classes of neurotransmitter receptors?

A: When the end of the nerve fibre released some chemical substance, then it is called…

Q: which is not true of neurotransmitters?

A: Nervous system:       It is the most complex system in a human body that performs it's functions by…

Q: What is the function of the sodium-potassium pump during the nerve impulse transmission? Which is…

A: Many cell (plasma) membranes contain the sodium–potassium pump. The pump is powered by ATP and…

Q: What is secreted at axon terminals?

A: Axon terminals are present at the end of the axon of a neuron. These are tiny swellings that are…

Q: Please answer  3) Which of the following keeps the impulse traveling in one direction down the…

A: The nerve impulse helps in performing the motor and sensory functions of the body. The nerve cells…

Q: What is the relationship between action potential conduction and axonal diameter?

A: The neurons transmit the signal or information via electrochemical impulses called action potential…

Q: How do action potentials and graded potentials differ?

A: The changes in the membrane potential of the plasma membrane in the neuron are stimuli for the…

Q: How do ion channels that are highly selective obtain high selectivity for that specific ion?

A: The biological membranes are selectively permeable. All molecules are not transported across the…

Q: Describe in detail the function for  three  type of potentials seen in neurons  and  describe in…

A: Cells of the nervous system are called neurons, that are seen to communicate with each other in…

Q: what would happen to the action potential if the potassium channels opened before the sodium channel

A: Neurons and muscles have cells that generate an action potential in response to stimuli. These are…

Q: Which factors in the establishment of the membrane potential are considered in the Nernst equation?…

A: Resting membrane potential is defined as the electrical potential difference across the cell…

Q: When a neuron is polarized, O a) both positive and negative ions are concentrated inside the neural…

A: The word polarized means that there is a charge difference which is responsible for the occurrence…

Q: Calcium ions a)Help control the membrane threshold voltage. b)Reduce axon permeability to Na+.…

A: sensory input-afferent information travels from the outside environment to brain environment.

Q: What do voltage-gated ion channels give?

A: Introduction: Proteins play different roles in the living body. These large biomolecules are vital…

Q: What is the point A on the graph? Define this term. B) What ions are moving at B on the graph, what…

A: Action potential An action potential is defined as the sudden rise and fall in the membrane…

Q: 12) when K+ voltage-gated channels open, which of the following occurs? a) depolarization  b) both…

A: In that they repolarize activated neurons to their resting state, voltage-gated potassium channels…

Q: What takes place during the repolarization and hyperpolarization phases of an action potential?

A: The action potential can be defined as the frequent, fast, transitory, and change of the resting…

Q: What would happen if the drug blocked K+ channels instead?

A: The body's systemic functioning is due to the communication between different cells that occur,…

Q: c) multipolar neuronsT d) pseudounipolar neurons T hich of the following statements are correct with…

A: Neurons are divided into four major types: unipolar, bipolar, multipolar, and pseudounipolar. All…

Q: what is the correct order of the phases of an action potential

A: Introduction: The resting membrane potential, often known as the resting potential, is a voltage…

Q: In SA nodal cells the upstroke of the action potential: A)is characterized by a substantial…

A: The sino atrial node is the pacemaker of the heart. The cells of the sea node have a particular…

Q: Which component of the neuron sends action potentials away from the cell body?

A: A neuron is a building block of the nervous system. There are millions of neurons present in our…

Q: Action potentials (APs) are all-or-nothing, nondecremental, electrical potentials that allow an…

A: j) Action potentials (APs) are all-or-nothing, nondecremental, electrical potentials that allow an…

Q: Draw a presynaptic and postsynaptic neuron at to demonstrate the release and acceptance of a…

A: SNARE protein play important role in release of neurotransmitter from synaptic vesicles  as they…

Q: A sodium channel in a nerve membrane a)Inactivation gate closes when the membrane reaches ~+30 mV.…

A: These are integral membrane proteins that form ion channels,  conducting sodium ions through a…

Q: What takes place during the depolarization phase of an action potential? How is it an example of a…

A: Introduction:To communicate and respond to the stimulus, neurons need to communicate with each…

Q: 13) Draw a graph representing the changes in membrane potential across the axonal membrane before,…

A: The electric signals that flow down the dendrites to form a nerve impulse or an action potential are…

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: Action potential conduction velocity is higher in a myelinated axon compared to an unmyelinated axon…

A: In a myelinated axon, a smaller portion of the axonal membrane is exposed to the extracellular fluid…

Q: How do local potentials and action potentials differ?

A: The differences are given below.

Q: Explain how the transmission of an action potential would be impacted if voltage- gated calcium…

A: The transmission of nerve impulse from one neuron to the next neuron occurs at the synapse that is…

Q: ) Neurons cannot respond during the absolute refractory period because: a) the concentration…

A: The absolute refractory period starts immediately after the initiation of the action potential and…

Q: Describe the different types of ion channels on a neuron.

A: A single neuron can have more than 10 kinds of ion channels located in different domains of its…