How do ACh neurotransmitters cause the “second action potential”

Q: How does hyperpolarisation decrease amplitude of an action potential during a train of action…

A: The rapid and large change of membrane potential of a nerve cell during which the potential reverses…

Q: What is action and resting potential and how does it work in conducting electrical impulses?

A: Neurons are the functional units of the nervous system that transmit stimuli. The structure of a…

Q: Which neurotransmitters are excitatory and which are inhibitory? How do they exert their effects?

A: BASIC INFORMATION  NEURON   It is the longest cell inside the human body  It is found in the brain…

Q: What are possible fates of neurotransmitters?

A: Neurotransmitters can be defined as the chemical messengers that will play the role in transmitting…

Q: How is action potential propagated along the axons?

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

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: Is tubocurarine a competitive or a non-competitive antagonist of acetylcholine-induced responses?…

A: Agonists are chemicals that bind to a receptor and produce a response. Antagonists are reagents that…

Q: Explain Mechanisms of Neurotransmitter Release

A: Neurotransmitters are the chemical messengers that involves in transmitting message from one nerve…

Q: Give FOUR criteria for identifying a substance as a neurotransmitter.

A: Introduction  A neuron releases a signalling chemical called a neurotransmitter across a synaptic…

Q: What is occurring during the repolarization phase of an action potential? O Voltage-gated…

A: Answer. All cells have an electrical potential difference, or membrane potential, across the plasma…

Q: What is action potential propagation?

A: The neuron can be defined as a basic working unit of the brain and the specialized cell designed to…

Q: Discuss the Mechanisms of Neurotransmitter Release?

A: Neurotransmitters are the chemical messengers that convey nerve impulses.

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: What makes an action potential rise to +35 mV? What makes it drop again after this peak?

A: Action potential is defined as the sudden change in the resting membrane potential in the neurons…

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

A:

Q: Describe Mechanisms of Neurotransmitter Release?

A: The release of neurotransmitters depend on neurons represents one of the pivotal events in synaptic…

Q: What triggers neurotransmitter release at the synaptic cleft?

A: The nervous system is a complex system of nerves and specialized cells known as neurons. The nervous…

Q: Compare and contrast the transmission of electrical activity at aneuromuscular junction with that at…

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

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: autonomic system and identify the neurotransmitters and receptors such as dopamine,norephinephrine…

A: The autonomic nervous system is responsible for controlling involuntary movements aids in the…

Q: neurology, Will abolishing extracellular calcium concentration prevent electrical neuro transmission…

A: When the action potential reaches the nerve terminal, it activates voltage-dependent calcium…

Q: why does the action potential proceed in both directions away from the point of local current entry…

A: The nervous system functions to sense, integrate, and respond to the external or internal stimulus…

Q: Why are there multiple receptor subtypes for eachneurotransmitter? Why not a few receptors and lots…

A: Introduction A molecule within or on the surface of a cell that attaches to a specific chemical and…

Q: a newly-developed drug is found to bind to acetylcholine receptors but does not activate them, the…

A: Introduction: Some drugs are designed to produce an opposing reaction when bound with the receptor…

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: What kinds of changes in ion conductance may be expected in an action potential? And how do ion…

A: An action potential takes place if the membrane potential of a particular cell location rises and…

Q: How do ACh neurotransmitters cause the “second action potential”

A: When a Nerve membrane is stimulated, a very rapid change in nerve membrane potential occurs, which…

Q: Define and describe the absolute and relative refractory periods and how they affect the direction…

A: An action potential:It can be defined as a swift rise and succeeding fall in the membrane potential…

Q: Refer to the graph showing the course of an action potential. Which of the numbered points along the…

A: As the membrane potential is increased, sodium ion channels open, allowing the entry of sodium ions…

Q: The multipolar neurones accumulate melanin pigment with age, what neurotransmitter is associated…

A: Melanin is a pigment responsible for skin pigmentation. With the advancing stage, it starts…

Q: What is the plateau stage of the action potential?

A: The heart is a muscular organ that is divided into the left and right sides to prevent the mixing of…

Q: What is action and resting potential and how does it work in conducting electrical impulses?

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

Q: what different types of neurotransmitters are there and their functions?

A: Neurotransmitters are the chemical molecules that help in the transmission of information from one…

Q: How is action potential propagated along the axons?

A: When a neuron's axon wants to send information along the body, it generates an action potential. It…

Q: a) How does a CAP differ from a single action potential? b) Action potentials are said to be all or…

A: a*A compound action potential (CAP) is a signal from a nerve trunk which is made of  numerous axons.…

Q: Post-synaptic acetylcholine receptors are blocked by   A.Calcium ions B.Atropine  C.Nerve gases…

A: Acetylcholine is the chief neurotransmitter of the parasympathetic nervous system that controls the…

Q: neurotransmitter after being released from the synaptic vesicle?

A: The neurotransmitter after being released into synaptic cleft from the vesicles, They interact with…

Q: What determines the maximum rate of Action Potential firing?

A: The action potential is created when the membrane potential in a neuron accidentally rises and…

Q: How is it possible for a particular neurotransmitterto produce opposite effects in different…

A: Neurotransmitters are a type of chemical messenger, which transmits signals across a chemical…

Q: what neural strucutre initiates the action potential and why ?

A: Neurons are the key components of the nervous system present in an organism. They are involved in…

Q: Which produces the most action potentials: a prolonged threshold stimulus ora prolonged,…

A: The power of action is usually initiated by postsynaptic excitatory skills arising from the…

Q: Which of the following statements about action potentials and information transmission in the…

A: Introduction Action potential:- It is defined as a transitory, fast, sudden, and propagating change…

Q: What are the two mainions that participate in theelectrical impulsetransmission in neurons?

A: An action potential, likewise called a nerve impulse, is an electrical charge that moves along the…

Q: When the action potential reaches the presynaptic terminal, which ion must enter the presynaptic…

A: Neurons communicate with each other by transferring electrical signals in the form of action…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.