How does hyperpolarisation decrease amplitude of an action potential during a train of action potentials

Q: What is needed for action potentials to occur?

A: In physiology, an action potential is a sudden, transitory change in the resting potential of a…

Q: Explain how axon diameter and myelination affect conduction velocity.?

A: Axon is a slender long projection of a neuron or nerve cell. It conducts the electrical impulses…

Q: What causes Hyperpolarization following the spike of the action potential?

A: The neurons have the capability to generate and transmit nerve impulses that ultimately guide the…

Q: What is the relationship between action potentials andimpulses?

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

Q: Describe how graded potentials can lead to an action potential (temporal summation and spatial…

A: The measurable brain reaction to a given sensory, cognitive, or motor event is known as an…

Q: What's the phases of action potential?

A: An action potential occurs in response to rapidly increasing and falling levels of membrane…

Q: Describe the difference between graded and action potentials.

A: Graded potentials are caused by external stimuli (in sensory neurons) or by neurotransmitters…

Q: ntinuously?

A: Given: Need to define how is a neuron prevented from firing potentials continuously

Q: Explain the relationship between threshold potential and an action potential.

A: An action potential can be defined as the phenomenon when there occurs at excitation of the nerve or…

Q: Explain how frequency of action potentials differs from the velocity of an action potential…

A: Action potential exists when the membrane potential of a particular cell position rapidly rises and…

Q: Which elements are involved with action potential?

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

Q: What is summation with regards to action potentials?

A: Introduction:- The potential of action is the rapid rise and subsequent collapse of electrical or…

Q: How graded potentials differ from action potential?

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

Q: What factors promote change in Vm (membrane potential) during an action potential?

A: The neurons have the capability of producing and transmitting nerve impulses. They actually changed…

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: Identify the important physiological structures involved in action potential; then, explain in…

A: The neuron is the most excitable cell and therefore has the simplest action potential procedure.…

Q: Describe how an Action Potential is conducted.

A: The body has a network of conductive cells known as neurons. The neurons are connected end to end,…

Q: What is the role of maximal potassium conductance in the generation and propagation of action…

A: An action potential is an electrical signal that travels along the membrane of a neuron. It is…

Q: What are THREE major functional characteristics of the voltage-gate Na+-channels and how do these…

A: Voltage gated sodium Ion channels are integral membrane proteins, present in the cell membrane of…

Q: How do ion channels and sodium-potassium pumps contribute to the resting potential?

A: Ion channels are pore forming membrane proteins that allow ion to pass through the channel pore.…

Q: Explain the all-or-none law of action potentials, and describe the effect of increased stimulus…

A: In reaction to stimuli, the axon membrane permeability to and depends on the opening of gated…

Q: What is the relative importance of the Na+/K+ pump in action potential propagation?

A:

Q: Describe how following a threshold stimulus, a action potential is carried along an unmyelinated…

A: Myelination refers to the presence of a myelin sheath on the axons. Myelin sheath is composed of…

Q: List the differences between graded potentials and action potentials?

A: Nerve cells are able to conduct impulse as they are excitatory cells. The membrane of these cells is…

Q: Describe the sequence of activation of ion channels leading to action potential propagation.

A: The action potential is produced in a nerve or muscle when it is stimulated. It is the method of…

Q: Describe the voltage-gated ion channels that are essential for the development of the action…

A: IONIC BASES OF EACH PHASE OF ACTION POTENTIAL : the depolarization and repolarization phase of the…

Q: What happens when a graded potential occurs?

A: Graded potential is produced when a ligand opens a ligand gated channel in a dendrite allowing ions…

Q: Describe the role of the axon hillock in generating action potentials.

A: Axon hillock can be defined as a specialized part of the cell body. It serves to connect to the axon…

Q: Describe the creation of an action potential and explainhow it is propagated.

A: An action potential is an immediate increase and subsequent fall in membrane potential across a…

Q: what does the oscillatory behavior in action potential indicate or mean?

A: A resting neuron is the one that is not transmitting any impulse and is in the resting stage with…