When the action potential reaches the presynaptic terminal, which ion must enter the presynaptic terminal to evoke release of the neurotransmitter?

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: How a presynaptic neurone is adapted for the manufacture of neurotransmitter?

A: Synapse is the junction between the two neurons. Information from one neuron goes to another neuron…

Q: What neurotransmitters are involved in the parasympathetic nervous system?

A: Autonomic nervous system (ANS) is responsible for regulating the internal organs and glands,…

Q: The trigger for an action potential is:

A: The potential difference across a membrane is known as the Membrane Potential. Frequent, rapid…

Q: Name the neurotransmitter that conducts nerve impulse through synapse.

A: Neurotransmitters are signalling molecules that act on receptors of postsynaptic neurons. Neurons…

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: Name the neurotransmitter released at each synapse orneuroeffector junction in the somatic and…

A: The nervous system is one of the vital systems of a body. It is a system of nerves which carry…

Q: Sometimes diverging circuits split into excitatory and inhibitory paths. When might such a circuit…

A: Neural Circuits The synaptic connection has different patterns between neuronal pools. They are…

Q: . What series of events stimulates a presynaptic neuron to releaseneurotransmitters?

A: One neuron communicate with the other at junctions known as Synapses. At these points, a neurons…

Q: What is an excitatory postsynaptic potential?

A: An Excitatory postsynaptic potential (EPSP)  is a temporary post synaptic membrane caused by the…

Q: How might the disease multiple sclerosis affect transmission of action potentials along a myelinated…

A: Sclerosis : It is the stiffening of a tissue or anatomical feature, usually caused by a replacement…

Q: Explain Mechanisms of Neurotransmitter Release

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

Q: Define each of the following and explain its importance to neuronal function: dendrites, soma, axon,…

A: The nervous system is the part of the body of an animal that coordinates its actions and transmits…

Q: What is the relationship between the threshold and an action potential?

A: At the time the potential difference approaches the threshold voltage then the decreased voltage…

Q: Describe how action potentials are conducted by unmyelinated nerve fibers. Why is saltatory…

A: Introduction :- Conductability is the capacity to conduct the electrical along it's pathway. The…

Q: Describe the actions of the neurotransmitters

A: There are over forty neurotransmitters within the human nervous system; a number of the foremost…

Q: What are the criteria for identification of the neurotransmitter at a particular synapse?  Which two…

A: Neurotransmitter The chemical that achieves chemically mediated transmission are called…

Q: What letter(s) represent the starting point of an action potential?

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

Q: What happens when a neuron fires? What leads up to it, and what happens during the action potential?

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

Q: Describe how different post-synaptic potentials can be summated on a single neuron to determine if…

A: Synapse is a junction that mediates information transfer from one neuron to another neuron or an…

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: What would happen to synaptic transmission if you blocked the degradation and/or reuptake of…

A: Neurons or nerve cells are the basic structural and functional unit of the brain. Brain tissue…

Q: What will happen if threshold value for the generation of action potential is not reached?

A: Action potential is an electrical signal that travels along the cell membrane of neurons. It is…

Q: If the middle of an axon were depolarized to threshold, in which direction could the action…

A: Neurons are the basic unit of the nervous system. They are involved in the transmission of nerve…

Q: starting with an axon that is maintaining a resting potential, describe the sequence of events that…

A: Answer: AXON = It is the part of the neuron , which is long, slender in structure , which conducts…

Q: What happens to the neurotransmitter molecules after they’ve attached to the receptor sites of the…

A: Neurons are nerve cells that transmits the nerve signals across the neurons. The neuron sends the…

Q: which way does the neurotransmitter NO move

A: The chemical messengers that transmit a message from a nerve cell to a target cell across the…

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

A: Acetylcholine is the neurotransmitter of the parasympathetic nervous system that dilates blood…

Q: The most common neurotransmitter involved in the transmission of an action potential is

A: Neurotransmitters are chemical messengers. They carry chemical signals from one neuron to next…

Q: Define the term neurotransmitters?

A: Biology words are key concepts and phrases used in the study of life and living beings, which is…

Q: How do you know when an action potential will fire or not on a neuron?

A: Action potential is generated when a neuron is  fired. It means neural membrane allows influx of…

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 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: 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: As the membrane reaches the peak of the action potential, what brings the membrane down to the…

A: When the resting neuron receives a stimulus that is beyond the threshold, It reaches the peak of…

Q: The influx of calcium into the axon terminal of a chemical synapse is responsible for

A: Biology is the broad branch that deals with the study of life and living organisms. This includes…

Q: What happens to acetylcholine molecules after they stimulate a postsynaptic receptor?

A: Acetylcholine which serves as an important neurotransmitter of the parasympathetic nervous system…

Q: What is an action potential and how it is generated and propagated along an neuron? What happens…

A: Action potential is electrical event that signals the neuron. Neurons  transmit these signals to…

Q: Describe how an action potential in a presynaptic neuron causes a) an excitatory postsynaptic…

A: At the chemical synapse the presynaptic and postsynaptic cells are not in physical contact but are…

Communication

Communication is a method of transferring information between two persons or organisms. Communication is possible using mutually understood behaviors such as signs, symbols, or language. In the year 1980, S. F. Scudder proposed communication theory. According to his ideas, all living beings on the earth communicate, but the methods of communication differ. Communication skills are now part of soft skills.