A postsynaptic neuron has three presynaptic inputs - from neurons X, Y, and Z. When X and Y are stimulated simultaneously and repeatedly, the postsynaptic neuron reaches threshold and undergoes an action potential. When X and Z

Q: During excitatory synaptic transmission, the electrical signal carried along the axon of a…

A: The point of electric nerve impulse transmission between two nerve cells (neurons), or between a…

Q: (c) 20 No. of observations 18 642 14 10 8 6 4 2 O 0 0.4 2 3 15 6 0.8 1.2 1.6 2.0 2.4 Endplate…

A: Action potential is the nerve impulse or the change in voltage (membrane potential) across the…

Q: If you inhibit the closing of sodium channels what do you predict the effect on neuronal function…

A: Action potential in neuron is the direct consequence of voltage gated sodium channel. During the…

Q: Explain why a single action potential reaching a synapse is unlikely to trigger an action potential…

A: A rapid or large changes in membrane potential of nerve cells during which the potential actually…

Q: Based on the graph, how soon could another action potential be easily initiated (at the end of the…

A: Nerve cells or muscle cells have a tendency to transmit impulses. The changes in the electrical…

Q: If you increase the amount of neurotransmitter in the synaptic cleft, how would you expect the…

A: Neurotransmitter These are defined as the chemical messengers that carry chemical signals from one…

Q: Which of the following describe(s) the difference(s) between an EPSP and an IPSP? Select all that…

A: The synaptic junction can be excitatory or inhibitory in nature depending upon the release of which…

Q: Explain two possible reasons for neuron 2 not firing.

A: An action potential happens when the voltage or membrane potential of the cellular membrane, rapidly…

Q: You have isolated a neurotoxin from a newly discovered snake species. When you administer the toxin…

A: The presynaptic and post synaptic neuron are the two interconnected neuron which can communicate…

Q: Action potentials are changes in membrane potential that are localized to a small area of the plasma…

A: Answer :  Movements potential travels alongside a neuronal axon: The action capability is pushed…

Q: A new drug opens calcium ion channels in the membrane of the postsynaptic neuron. Would this produce…

A: There are many different types of cells in the body which form various organs and organ systems. For…

Q: What does summation mean when we talk of postsynaptic potentials? When is summation non-linear?

A: Introduction  Postsynaptic potentials are those that usually occur as a result of alterations near…

Q: Why does neuronal function require the voltage-gated K+ channels to open more slowly than the…

A: Voltage-gated channels are specialized proteins that are essential for the generation and…

Q: A channels opens a postsynaptic membrane that causes a negative ion to enter the cell. What type of…

A: Graded potentials are the short lived changes occurs according to the charge in the membrane. They…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Ans: Chloride (Cl- )

Q: Local anesthetic is often used in dentistry to lessen the sensation of pain during dental…

A: When membrane is in resting condition, it is only permeable to potassium ions and nearly impermeable…

Q: a)Explain how the presynaptic cell "knows" when to release its neurotransmitter into the synaptic…

A: Neurotransmitters are often referred to as the body’s chemical messengers. They are the molecules…

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 is a typical value for an inhibitory post synaptic potential?  Why is it inhibitory?

A: An inhibitory post synaptic potential is a kind of synaptic potential that makes a postsynaptic…

Q: Since at any moment a neuron is likely to have thousands of neurons releasing neurotransmitters at…

A: Neurons are communication messengers. They utilize electrical impulses and chemical signals to…

Q: ou observe that a neuron treated with a metabolic inhibitor which prevents ATP generation still can…

A: Neurons are the basic unit of the nervous system. The lipid bilayer is selectively permeable and is…

Q: Which types of patch clamp technique should be used if you want to determine if a particular…

A: The Patch-clamp method is an electrophysiological laboratory technique for examining currents and…

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: After an action potential has been initiated, there are two processes that prevent the membrane from…

A: The generation of action potential is very much important characteristics in nerve cells that is…

Q: Impact of heat on A Impact of ice on Al Impact of drug X on A Impact of drug X on B

A: Inhibitory neurons are those neurons that produce neurotransmitters to reduce the ability of…

Q: Describe how neurotransmitter binding to receptors on apostsynaptic cell causes inhibition or…

A: Neurotransmitters are chemicals responsible for the transmission of a signal or an impulse via a…

Q: ATP is used to power the creation of a neuron's resting potential. True False

A: Resting potential of the neuron is -70 mV.

Q: Neurotransmitter binding to the receptor is transient andreversible. True or false?

A: In human physiology, neurotransmitters are defined as the chemical compound or substances of the…

Q: List three ways in which action potentials can be initiated in neurons?

A: Neurons are a type of cell that is solely responsible for the transmission of information across the…

Q: During the _____ phase of an action potential, the membrane potential is more positive than the…

A: Phases of generation of action potential from resting membrane potential  Depolarisation…

Q: What is a typical value for an inhibitory post synaptic potential? Why is i inhibitory?

A: An inhibitory postsynaptic potential is a kind of synaptic potential that makes a postsynaptic…

Q: Which of the following would occur if you were measuring the voltage of a motor neuron that was…

A: They are regulated by inhibitory neurotransmitters such as glutamate and GABA. They prevent an…

Q: An action potential has reached the axon terminal of a presynaptic cell. As a result of the action…

A: An action potential can be defined as a short-term change that can be observed in electrical…

Q: What property is responsible for the smaller steady state DVm in the postsynaptic cell compared to…

A: The electrical activity in a neuron is characterized by the difference between the resting membrane…

Q: How do neurotransmitters directly affect the postsynaptic neuron? A)They cause a change in the…

A:

Q: You have a neural system with three neurons; two presynaptic (PS1 and PS2) and one postsynaptic…

A: Neurons are the fundamental, structural, and units of both the central and peripheral nervous…

Q: f a post synaptic neuron is stimulated to threshold by spatial summation this implies that the post…

A: The nervous system is composed of millions of nerve cells called neurons. Synapses are junctions…

Q: List the two types of voltage-gated channels that playimportant roles in the production of action…

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